Red Hat Advanced Cluster Security
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Recent Red Hat Advanced Cluster Security Security Advisories
| Advisory | Title | Published |
|---|---|---|
| RHSA-2023:3435 | (RHSA-2023:3435) Important: Red Hat Advanced Cluster Security 3.74 for Kubernetes security update | June 5, 2023 |
| RHSA-2023:3379 | (RHSA-2023:3379) Important: Red Hat Advanced Cluster Security for Kubernetes 3.73 security update | May 31, 2023 |
| RHSA-2022:0431 | (RHSA-2022:0431) Moderate: Red Hat Advanced Cluster Security 3.68 security and enhancement update | February 3, 2022 |
By the Year
In 2026 there have been 1 vulnerability in Red Hat Advanced Cluster Security with an average score of 5.3 out of ten. Last year, in 2025 Advanced Cluster Security had 5 security vulnerabilities published. If vulnerabilities keep coming in at the current rate, it appears that number of security vulnerabilities in Advanced Cluster Security in 2026 could surpass last years number. Last year, the average CVE base score was greater by 0.34
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 1 | 5.30 |
| 2025 | 5 | 5.64 |
| 2024 | 2 | 7.20 |
| 2023 | 7 | 6.04 |
| 2022 | 1 | 8.80 |
It may take a day or so for new Advanced Cluster Security 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 Advanced Cluster Security Security Vulnerabilities
Information Disclosure in Go Viper Mapstructure WeakDecode via Error Messages
CVE-2025-11065
5.3 - Medium
- January 26, 2026
A flaw was found in github.com/go-viper/mapstructure/v2, in the field processing component using mapstructure.WeakDecode. This vulnerability allows information disclosure through detailed error messages that may leak sensitive input values via malformed user-supplied data processed in security-critical contexts.
Generation of Error Message Containing Sensitive Information
Operator SDK <0.15.2 RCE via insecure user_setup /etc/passwd
CVE-2025-7195
5.2 - Medium
- August 07, 2025
Early versions of Operator-SDK provided an insecure method to allow operator containers to run in environments that used a random UID. Operator-SDK before 0.15.2 provided a script, user_setup, which modifies the permissions of the /etc/passwd file to 664 during build time. Developers who used Operator-SDK before 0.15.2 to scaffold their operator may still be impacted by this if the insecure user_setup script is still being used to build new container images. In affected images, the /etc/passwd file is created during build time with group-writable permissions and a group ownership of root (gid=0). An attacker who can execute commands within an affected container, even as a non-root user, may be able to leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.
Incorrect Default Permissions
CIRCL FourQ RCE via Low-Order Point Injection in Diffie-Hellman
CVE-2025-8556
3.7 - Low
- August 06, 2025
A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.
Improper Verification of Cryptographic Signature
StackRox XSS via Role Name in Table Cells (CVE-2025-5198)
CVE-2025-5198
5 - Medium
- May 27, 2025
A flaw was found in Stackrox, where it is vulnerable to Cross-site scripting (XSS) if the script code is included in a small subset of table cells. The only known potential exploit is if the script is included in the name of a Kubernetes Role object* that is applied to a secured cluster. This object can be used by a user with access to the cluster or through a compromised third-party product.
XSS
serialize-javascript XSS via unsanitized regex input
CVE-2024-11831
5.4 - Medium
- February 10, 2025
A flaw was found in npm-serialize-javascript. The vulnerability occurs because the serialize-javascript module does not properly sanitize certain inputs, such as regex or other JavaScript object types, allowing an attacker to inject malicious code. This code could be executed when deserialized by a web browser, causing Cross-site scripting (XSS) attacks. This issue is critical in environments where serialized data is sent to web clients, potentially compromising the security of the website or web application using this package.
XSS
RHACS Portal XSS via Unsanitized Table InnerHTML on /main/configmanagement/*
CVE-2022-4975
8.9 - High
- January 27, 2025
A flaw was found in the Red Hat Advanced Cluster Security (RHACS) portal. When rendering a table view in the portal, for example, on any of the /main/configmanagement/* endpoints, the front-end generates a DOM table-element (id="pdf-table"). This information is then populated with unsanitized data using innerHTML. An attacker with some control over the data rendered can trigger a cross-site scripting (XSS) vulnerability.
XSS
Authenticated Registry Access Path Traversal in containers/image
CVE-2024-3727
8.3 - High
- May 14, 2024
A flaw was found in the github.com/containers/image library. This flaw allows attackers to trigger unexpected authenticated registry accesses on behalf of a victim user, causing resource exhaustion, local path traversal, and other attacks.
Improper Validation of Integrity Check Value
archiver: path traversal in tar unpack allows arbitrary file overwrite
CVE-2024-0406
6.1 - Medium
- April 06, 2024
A flaw was discovered in the mholt/archiver package. This flaw allows an attacker to create a specially crafted tar file, which, when unpacked, may allow access to restricted files or directories. This issue can allow the creation or overwriting of files with the user's or application's privileges using the library.
Directory traversal
OpenSSH <9.6 BPP handshake flaw allows integrity bypass (Terrapin attack)
CVE-2023-48795
5.9 - Medium
- December 18, 2023
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
Improper Validation of Integrity Check Value
RHACS Missing Security HTTP Headers Enable Clickjacking
CVE-2023-4958
6.1 - Medium
- December 12, 2023
In Red Hat Advanced Cluster Security (RHACS), it was found that some security related HTTP headers were missing, allowing an attacker to exploit this with a clickjacking attack. An attacker could exploit this by convincing a valid RHACS user to visit an attacker-controlled web page, that deceptively points to valid RHACS endpoints, hijacking the user's account permissions to perform other actions.
Clickjacking
PostgreSQL Array Integer Overflow Allows Authenticated Code Exec
CVE-2023-5869
8.8 - High
- December 10, 2023
A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.
Integer Overflow or Wraparound
PostgreSQL Mem Disclosure via Unknown-Type Aggregate Calls
CVE-2023-5868
4.3 - Medium
- December 10, 2023
A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type designation can disclose bytes, potentially revealing notable and confidential information. This issue exists due to excessive data output in aggregate function calls, enabling remote users to read some portion of system memory.
Function Call With Incorrect Argument Type
PostgreSQL pg_cancel_backend Exploit Allowing DoS on Background Worker
CVE-2023-5870
2.2 - Low
- December 10, 2023
A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.
Resource Exhaustion
HTTP/2 DoS via Stream Reset in nginx
CVE-2023-44487
7.5 - High
- October 10, 2023
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Resource Exhaustion
PostgreSQL Extension Script SQLi via @extowner@ @extschema@
CVE-2023-39417
7.5 - High
- August 11, 2023
IN THE EXTENSION SCRIPT, a SQL Injection vulnerability was found in PostgreSQL if it uses @extowner@, @extschema@, or @extschema:...@ inside a quoting construct (dollar quoting, '', or ""). If an administrator has installed files of a vulnerable, trusted, non-bundled extension, an attacker with database-level CREATE privilege can execute arbitrary code as the bootstrap superuser.
SQL Injection
Red Hat ACS K8s GraphQL Notifier Secret Escalation
CVE-2022-1902
8.8 - High
- September 01, 2022
A flaw was found in the Red Hat Advanced Cluster Security for Kubernetes. Notifier secrets were not properly sanitized in the GraphQL API. This flaw allows authenticated ACS users to retrieve Notifiers from the GraphQL API, revealing secrets that can escalate their privileges.
Exposure of Sensitive System Information to an Unauthorized Control Sphere
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