Red Hat Openjdk
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Recent Red Hat Openjdk Security Advisories
| Advisory | Title | Published |
|---|---|---|
| RHSA-2026:11822 | (RHSA-2026:11822) Important: OpenJDK 25.0.3 Security Update for Windows Builds | April 30, 2026 |
| RHSA-2026:9694 | (RHSA-2026:9694) Important: OpenJDK 25.0.3 Security Update for Portable Linux Builds | April 23, 2026 |
| RHSA-2026:9690 | (RHSA-2026:9690) Important: OpenJDK 21.0.11 Security Update for Portable Linux Builds | April 23, 2026 |
| RHSA-2026:9691 | (RHSA-2026:9691) Important: OpenJDK 21.0.11 Security Update for Windows Builds | April 23, 2026 |
| RHSA-2026:9688 | (RHSA-2026:9688) Important: OpenJDK 17.0.19 Security Update for Windows Builds | April 23, 2026 |
| RHSA-2026:9687 | (RHSA-2026:9687) Important: OpenJDK 17.0.19 Security Update for Portable Linux Builds | April 23, 2026 |
| RHSA-2026:9684 | (RHSA-2026:9684) Important: OpenJDK 8u492 Security Update for Portable Linux Builds | April 23, 2026 |
| RHSA-2026:9685 | (RHSA-2026:9685) Important: OpenJDK 8u492 Windows Security Update | April 23, 2026 |
| RHSA-2026:9686 | (RHSA-2026:9686) Important: java-17-openjdk security update | April 23, 2026 |
| RHSA-2026:9693 | (RHSA-2026:9693) Important: java-25-openjdk security update | April 22, 2026 |
By the Year
In 2026 there have been 7 vulnerabilities in Red Hat Openjdk with an average score of 7.6 out of ten.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 7 | 7.57 |
It may take a day or so for new Openjdk 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 Openjdk Security Vulnerabilities
Oracle Java SE DoS via Networking APIs (8u481-perf 26)
CVE-2026-34282
7.5 - High
- April 21, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Resource Exhaustion
Oracle Java SE JAXP RCE: 8u481, 11.0.30, 17.0.18, 21.0.10
CVE-2026-22016
7.5 - High
- April 21, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Information Disclosure
Buffer Overflow in giflib v5.2.2 EGifGCBToExtension - Remote DoS
CVE-2026-26740
7.5 - High
- March 18, 2026
Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.
Memory Corruption
LibPNG 1.6.55-Pre: OOB Read in png_set_quantize() w/ no hist leads to infinite loop
CVE-2026-25646
7 - High
- February 10, 2026
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.
Heap-based Buffer Overflow
Java SE/GraalVM Sec DOS via Unauth Net Exploit (8u471+)
CVE-2026-21945
7.5 - High
- January 20, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u471, 8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9; Oracle GraalVM Enterprise Edition: 21.3.16. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Resource Exhaustion
Oracle Java SE AWT/JavaFX Exec VULN 8u471/11.0.29/17.0.17/21.0.9
CVE-2026-21932
7.4 - High
- January 20, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: AWT, JavaFX). Supported versions that are affected are Oracle Java SE: 8u471, 8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9; Oracle GraalVM Enterprise Edition: 21.3.16. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 7.4 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N).
Improper Validation of Specified Type of Input
zlib untgz Global Buffer Overflow pre1.3.1.2
CVE-2026-22184
8.6 - High
- January 07, 2026
zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.
Memory Corruption
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