Red Hat Enterprise Linux Eus
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By the Year
In 2026 there have been 427 vulnerabilities in Red Hat Enterprise Linux Eus with an average score of 7.6 out of ten. Last year, in 2025 Enterprise Linux Eus had 19 security vulnerabilities published. That is, 408 more vulnerabilities have already been reported in 2026 as compared to last year. However, the average CVE base score of the vulnerabilities in 2026 is greater by 0.59.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 427 | 7.57 |
| 2025 | 19 | 6.98 |
| 2024 | 21 | 6.90 |
| 2023 | 31 | 7.35 |
| 2022 | 30 | 7.40 |
| 2021 | 5 | 7.48 |
| 2020 | 19 | 6.50 |
| 2019 | 183 | 5.92 |
| 2018 | 36 | 6.44 |
It may take a day or so for new Enterprise Linux Eus vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Red Hat Enterprise Linux Eus Security Vulnerabilities
Red Hat CA pki-core ACL Wildcard Permission Override CVE-2026-80110
CVE-2026-80110
8.1 - High
- September 21, 2026
A flaw was found in pki-core. The v2 REST ACL filter selects a tie-breaking permission for colliding literal and wildcard ACL keys using lexicographic string comparison rather than specificity, causing a wildcard-mapped permission to override a more specific literal-mapped permission when both match. In the CA's profile-management REST API this allows a request to POST /v2/profiles/raw -- intended to require Administrator-level profiles.create permission -- to instead be authorized under the lower-privileged profiles.approve permission held by the default Certificate Manager Agents group. The highest threat from this vulnerability is to confidentiality and integrity of the certificate authority's issuance policy.
AuthZ
Flatpak-Builder Git Hook Exec via use-git-am Patch
CVE-2026-86320
7.8 - High
- September 17, 2026
A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary code execution with the privileges of the user running flatpak-builder.
Code Injection
Local Privilege Escalation via TOCTOU in gvfsd-admin (Red Hat)
CVE-2026-88924
7 - High
- September 10, 2026
A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check Time-of-Use (TOCTOU) race condition and exchange the socket pathname with a symbolic link pointing to an arbitrary root-owned file (such as /etc/pam.d/su). The daemon subsequently follows the symlink and changes the ownership of the targeted root-owned file to the attacker's user ID. This allows an authenticated local attacker to modify critical system files, leading to a full local privilege escalation to root.
TOCTTOU
FreeIPA Web UI DOM XSS in Password Reset
CVE-2026-18147
8.1 - High
- September 09, 2026
A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, the attacker could inject and execute arbitrary JavaScript code. This allows the attacker to perform actions within the victim's authenticated session, potentially leading to full administrative control if an IdM administrator is targeted.
XSS
Bubblewrap <0.12.0: Symlink Escape via /oldroot During Sandbox Setup
CVE-2026-87766
8.8 - High
- September 09, 2026
A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.
insecure temporary file
Dogtag PKI ExternalProcessConstraint RCE via Unvalidated Profile Import
CVE-2026-76561
7.2 - High
- September 08, 2026
A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.
Shell injection
389 DS Stale Identity Exploit via SASL PLAIN Auth
CVE-2026-18922
9.8 - Critical
- September 07, 2026
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.
authentification
389 Directory Server NULL Pointer Crash via USE_ONE_BACKEND Control
CVE-2026-18453
7.5 - High
- September 07, 2026
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKEND control, resulting in denial of service.
NULL Pointer Dereference
389-DS SASL I/O Heap Overflow via Small-Length Underflow
CVE-2026-18355
7.5 - High
- September 07, 2026
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), the wrapped-record length read from the wire is validated only against an upper bound. A small wire length (0, 1, or 2) produces an encrypted_buffer_count below the already-consumed encrypted_buffer_offset, causing an unsigned subtraction underflow in sasl_io_read_packet(). PR_Recv is then requested to read approximately 4 GiB into a 1024-byte heap buffer, resulting in a heap buffer overflow with attacker-controlled content. After a successful SASL bind with integrity protection (SSF > 0), a remote authenticated attacker can cause a denial of service or potentially achieve remote code execution. This flaw is distinct from CVE-2026-11774, whose fix only guards against upper-bound overflow.
Integer underflow
Unauth LDAP Client Bypasses SELFDN ACI in 389 DS
CVE-2026-76560
7.5 - High
- September 07, 2026
A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to require a matching authenticated identity. This can allow an anonymous LDAP client to perform an operation, such as adding or modifying a directory entry, that a SELFDN-based ACI intended to restrict to a specific authenticated user.
AuthZ
FreeIPA idp-add Eval() RCE & DoS via Unvalidated --organization
CVE-2026-79678
8.1 - High
- September 07, 2026
A flaw was found in FreeIPA's idp-add command, where insufficiently validated --organization/--base-url input reaches a constrained eval() call before the corresponding LDAP access control check is enforced. This allows any authenticated IPA principal, regardless of privilege level, to enumerate and read the environment variables of the affected server process and to cause denial of service via memory exhaustion.
Eval Injection
FreeIPA LDAP ACI Flaw Grants Unauth Admin Privileges
CVE-2026-76578
9.8 - Critical
- September 07, 2026
A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.
Missing Authentication for Critical Function
Corosync TotemPG Heap Overflow (CVE-2026-81665)
CVE-2026-81665
7.5 - High
- September 04, 2026
A heap-based buffer overflow was found in Corosync's Totem Process Group (totempg) message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast protocol messages to the cluster could cause a heap buffer overflow with attacker-controlled data. This can crash the Corosync daemon, causing a denial of service to the entire cluster, and may potentially allow further exploitation given sufficient heap-corruption control.
Heap-based Buffer Overflow
libsoup HTTP/2 Heap UAF Arb. Code Exec
CVE-2026-85197
7.6 - High
- September 04, 2026
A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file body is being read asynchronously. This can lead to memory corruption, potentially resulting in information disclosure or arbitrary code execution.
Dangling pointer
GVFS SFTP Backend Buffer Overflow in read_reply()
CVE-2026-84268
8.8 - High
- September 01, 2026
A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.
Heap-based Buffer Overflow
rsyslog RainerScript replace() Heap Overflow (DoS)
CVE-2026-78002
7.5 - High
- August 27, 2026
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
Incorrect Calculation of Buffer Size
Privilege Escalation: PAC Omission in FreeIPA AD Trust
CVE-2026-11861
9.6 - Critical
- August 20, 2026
A flaw was found in FreeIPA. When a trust relationship is configured between FreeIPA and Active Directory, Active Directory users can bypass authentication for FreeIPA services, including the portal, SMB server, and LDAP directory. This is possible by impersonating a client name in the Ticket Granting Service (TGS) due to FreeIPA services not verifying Privilege Attribute Certificate (PAC) certificates. This vulnerability could allow an authenticated Active Directory user to escalate their privileges within the FreeIPA domain.
Incorrect Privilege Assignment
FreeIPA Memory Exhaustion DoS via Large /ipa/i18n_messages Request
CVE-2026-73198
7.5 - High
- August 20, 2026
A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a vulnerability in the `/ipa/i18n_messages` endpoint by sending an arbitrarily large request body. This can cause the service to consume excessive memory, leading to memory exhaustion, degraded responsiveness, and a denial of service (DoS) condition.
Allocation of Resources Without Limits or Throttling
FreeIPA Kerberos Principal Uniqueness Flaw Priv Escalation
CVE-2026-13097
8.7 - High
- August 20, 2026
A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.
Use of Incorrectly-Resolved Name or Reference
FreeIPA DoS via Oversized POST: /ipa/migration/migration.py
CVE-2026-73197
7.5 - High
- August 20, 2026
A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending oversized form POST requests to the `/ipa/migration/migration.py` endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service.
Allocation of Resources Without Limits or Throttling
libvirt NodeGetFreePages Int Overflow (Privilege Escalation)
CVE-2026-18917
7.8 - High
- August 20, 2026
A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.
Integer Overflow or Wraparound
rsyslogd Crash via Unauth Remote in Optional imptcp Module
CVE-2026-19654
7.5 - High
- August 12, 2026
A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.
Out-of-bounds Read
GStreamer avidemux OOB Read/Write Vulnerability pre-1.28.6
CVE-2026-73433
6.6 - Medium
- August 12, 2026
A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
Integer underflow
GStreamer gst-plugins-good (avidemux) OOB Read before 1.28.6
CVE-2026-73434
6.1 - Medium
- August 12, 2026
A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
Out-of-bounds Read
FreeIPA PrivEsc via trust-fetch-domains: Unauthorized Trust Refresh
CVE-2026-19550
8.2 - High
- August 11, 2026
A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, resulting in unauthorized, attacker-controlled modification of trusted-domain and ID-range identity data in the IPA LDAP directory.
AuthZ
Priv Esc via symlink in libvirt's swtpm process (root level)
CVE-2026-63622
7.8 - High
- August 10, 2026
A flaw was found in libvirt. A local attacker, specifically a process running as the confined `swtpm` user, could exploit a symlink-following vulnerability in the `virFileChownFiles()` function. By planting a symbolic link within the `swtpm` state directory, the attacker could trick the root-level libvirt daemon into changing the ownership of an arbitrary file to the `swtpm` user. This allows for privilege escalation from the `swtpm` sandbox to root-level file ownership control.
insecure temporary file
Int Overflow: GStreamer gst-plugins-ugly ASF demuxer
CVE-2026-19389
7.1 - High
- August 10, 2026
Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.
Integer Overflow or Wraparound
GStreamer gst-plugins-bad adpcmdec OOB Write via WAV Sample Count
CVE-2026-19387
7.6 - High
- August 10, 2026
A heap out-of-bounds write vulnerability was found in the GStreamer gst-plugins-bad adpcmdec element when decoding IMA/DVI ADPCM audio. Insufficient validation of the per-block sample count for multi-channel streams allows a crafted WAV file to cause writes beyond the allocated output buffer. This can lead to application crash, denial of service, memory corruption, or potentially arbitrary code execution when untrusted media is processed.
Memory Corruption
dracut initramfs cmd injection via unquoted DHCP ROOT_PATH
CVE-2026-15816
7.5 - High
- August 07, 2026
A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
Shell injection
Priv. Escalation via as-user Auth Bypass in udisks2 Mount()
CVE-2026-7867
7.8 - High
- August 06, 2026
A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user' parameter, mounting filesystems on behalf of arbitrary users, including privileged accounts. This can lead to local privilege escalation through mount point injection and manipulation of the mount namespace visible to privileged users.
AuthZ
GStreamer gst-plugins-good rtph264/265 depayloader buffer DoS
CVE-2026-18649
7.5 - High
- August 06, 2026
A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound until process memory is exhausted. This results in a denial of service through process termination.
Allocation of Resources Without Limits or Throttling
DoS via Reused AIO Handle in libkcapi's _kcapi_aio_read_all()
CVE-2026-71227
5.1 - Medium
- August 05, 2026
A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.
Infinite Loop
Mem Corruption via Uncanceled AIO on Err: libkcapi One-Shot AIO Leakage
CVE-2026-71226
7.3 - High
- August 05, 2026
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
Dangling pointer
IV Reuse in libkcapi large payload encryption causes confidentiality breach
CVE-2026-71225
6.5 - Medium
- August 05, 2026
A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs (over 64 KiB) in stateful modes such as Counter (CTR) or Cipher Block Chaining (CBC), the library improperly reuses the Initialization Vector (IV) for each internal data chunk. A remote attacker could potentially exploit this by making an application that uses libkcapi process specially crafted large inputs. This can lead to a significant weakening of data confidentiality, as the repeated IV use can expose relationships in encrypted plaintext, and may also affect data integrity by causing incorrect cryptographic processing.
Use of Insufficiently Random Values
Red Hat GNOME-Remote-Desktop RDP Connection Throttle Bypass
CVE-2026-18358
7.5 - High
- July 31, 2026
A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication connections to the RDP listener. This can accumulate accepted sockets and pending routing-token operations until timeout, exhausting resources and preventing legitimate users from establishing RDP sessions. This issue does not affect the upstream version.
Resource Exhaustion
389 DS LDAP Filter Injection via CleanAllRUV Replication Status-Check
CVE-2026-11770
7.5 - High
- July 31, 2026
A flaw was found in 389 Directory Server. An unauthenticated remote attacker can inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler performs the search against cn=config with elevated replication plugin privileges and returns a boolean match result, the attacker can extract sensitive server configuration metadata, including replication bind DNs and password storage scheme information.
LDAP Injection
389 DS LDAP: Stack Buffer Overflow in get_ruvelement_from_berval
CVE-2026-15722
7.5 - High
- July 31, 2026
A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to denial of service.
Stack Overflow
Red Hat PCP __pmGetPDU Integer Overflow DoS
CVE-2026-16529
7.5 - High
- July 30, 2026
A signed integer overflow in the PCP __pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet reads.
Integer Overflow or Wraparound
Unauth RCE via PCP pmproxy /store (CVE-2026-16527)
CVE-2026-16527
7.3 - High
- July 30, 2026
An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.
Missing Authentication for Critical Function
PCP linux_sockets Module Exposes Unsecured Connection for Privilege Escalation
CVE-2026-16526
8.8 - High
- July 30, 2026
A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
File descriptor leak
Command Injection in PCP linux_sockets PMDA via network.persocket.filter
CVE-2026-16524
7.8 - High
- July 30, 2026
A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.
Shell injection
Red Hat sg3_utils: sg_inq --export Control Characters Leak
CVE-2026-16313
7.6 - High
- July 28, 2026
A flaw was found in sg3_utils. The sg_inq command, when invoked with the --export option, outputs device identification data without sanitizing control characters in SCSI name string fields. A newline character embedded in a device-supplied name string can inject arbitrary properties into the udev device database. This could allow an attacker who can present a crafted SCSI device to execute arbitrary commands as root when the device is disconnected.
CRLF Injection
Red Hat librest PKCE GRand PRNG flaw
CVE-2026-16615
6.8 - Medium
- July 22, 2026
A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks sufficient cryptographic entropy, a malicious actor can reverse-engineer the pseudo-random number generator (PRNG) seed to predict or reconstruct the code verifier string, allowing an attacker to bypass PKCE protections and successfully impersonate the client during the OAuth 2.0 authorization flow.
PRNG
GLib GDBus gdbusauth DoS via Input Length Misvalidation
CVE-2026-15588
5.3 - Medium
- July 20, 2026
A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.
Allocation of Resources Without Limits or Throttling
XDGMIME Heap Buffer Overflow via MIME Magic File (CVE-2026-16118)
CVE-2026-16118
7.1 - High
- July 17, 2026
A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.
Heap-based Buffer Overflow
PipeWire Sandbox Escape via PulseAudio Compat Layer
CVE-2026-5674
8.8 - High
- July 16, 2026
A flaw was found in PipeWire, a multimedia server. This vulnerability allows an attacker to escape sandboxed applications, such as Flatpak, by exploiting PipeWire's PulseAudio compatibility layer. An attacker with minimal permissions within a sandboxed environment can load a malicious library, leading to arbitrary code execution outside the sandbox and potential compromise of the user's system.
DLL preloading
libsoup WebSocket Frame Length Validation DoS
CVE-2026-15711
7.5 - High
- July 14, 2026
A vulnerability was found in libsoup's WebSocket frame parsing implementation. The library fails to validate length rules specified in RFC 6455 §5.5, which mandates that all WebSocket control frames (e.g., PING, PONG, CLOSE) contain a payload of 125 bytes or less. A remote, unauthenticated attacker can exploit this by sending a non-compliant, oversized control frame. Because the parser handles this protocol violation improperly instead of throwing an immediate connection termination error, it triggers a internal processing crash, resulting in a remote denial of service (DoS) for applications utilizing libsoup WebSockets.
Allocation of Resources Without Limits or Throttling
libsoup WebSocket permessage-deflate OOM DoS via decompression bomb
CVE-2026-15709
7.5 - High
- July 14, 2026
A flaw was found in libsoup's WebSocket implementation when using the permessage-deflate extension. The extension's decompression loop (inflate()) processes data in chunks without enforcing an upper boundary limit on the output buffer size. While libsoup limits the incoming compressed frame size via max_incoming_payload_size, it fails to track or limit memory allocation during decompression. A separate check for decompressed size (max_total_message_size) exists but executes only after inflation is complete, and it is entirely disabled by default for client connections. A remote, unauthenticated attacker can exploit this by sending a small, highly compressed payload (a decompression bomb), causing unbounded memory allocation that triggers an Out-of-Memory (OOM) crash and a Denial of Service (DoS).
Data Amplification
Stack Buffer Overflow in GStreamer DTLS Plugin (CVE-2026-59692)
CVE-2026-59692
7.5 - High
- July 09, 2026
A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.
Stack Overflow
GStreamer rfbsrc plugin heap buffer overflow via Hextile
CVE-2026-59691
7.1 - High
- July 09, 2026
A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.
Memory Corruption
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