- Issued:
- 2026-07-23
- Updated:
- 2026-07-23
RHSA-2026:42900 - Security Advisory
Synopsis
Important: OpenJDK 25.0.4 Security Update for Portable Linux Builds
Type/Severity
Security Advisory: Important
Topic
An update is now available for OpenJDK.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit.
This release of the Red Hat build of OpenJDK 25 (25.0.4) for portable Linux serves as a replacement for the Red Hat build of OpenJDK 25 (25.0.3) and includes security and bug fixes as well as enhancements. For further information, refer to the release notes linked to in the References section.
Security Fix(es):
- JDK: Enhance TLS certificate handling (CVE-2026-46968)
- JDK: Improve DTLS handshaking (CVE-2026-46917)
- JDK: Enhance JPEG handling (CVE-2026-47010)
- JDK: Enhance XBM image support (CVE-2026-47021)
- JDK: Enhance Jar file processing (CVE-2026-47027)
- JDK: Improve certification checking (CVE-2026-60147)
- JDK: Enhance AWT ImagingLib (CVE-2026-47059)
- JDK: Enhance Jar handling (CVE-2026-47063)
- JDK: Update LCMS to 2.19 (CVE-2026-41254)
Enhancement(s):
- For the last couple of years, OpenJDK has used a single build shared among multiple RPMs and a tarball available on the customer portal. The single "portable" build has a release number ('p') and each RPM has its own release number ('r'). However, the RPM naming only showed the RPM release number, while the version output from the build showed the portable release number, making it unclear that they were different numbers. From this release onwards, a release field of the form 'p.r' is always used for RPMs and the version output shows 'p'. (OPENJDK-4876)
Bug Fix(es):
- The performance of the Math.pow function regressed between OpenJDK 8 and OpenJDK 11. This was due to an absence of constant folding when applicable (for example, Math.pow(2,1) being replaced by 2). This release reintroduces this optimization. (OPENJDK-4885)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
Before applying this update, make sure all previously released errata relevant to your system have been applied.
For details on how to apply this update, refer to:
Affected Products
- OpenJDK Java (for Middleware) 1 x86_64
Fixes
- BZ - 2459420 - CVE-2026-41254 Little CMS: lcms2: mm2/Little-CMS: Little CMS: Information disclosure or denial of service via integer overflow in CubeSize
- BZ - 2502751 - CVE-2026-46968 openjdk: Enhance TLS certificate handling
- BZ - 2502782 - CVE-2026-46917 openjdk: OpenJDK: Improve DTLS handshaking (Oracle CPU 2026-07)
- BZ - 2502783 - CVE-2026-47010 openjdk: OpenJDK: Enhance JPEG handling (Oracle CPU 2026-07)
- BZ - 2502784 - CVE-2026-47021 openjdk: OpenJDK: Enhance XBM image support (Oracle CPU 2026-07)
- BZ - 2502791 - CVE-2026-47027 openjdk: OpenJDK: Enhance Jar file processing (Oracle CPU 2026-07)
- BZ - 2502792 - CVE-2026-47059 openjdk: OpenJDK: Enhance AWT ImagingLib (Oracle CPU 2026-07)
- BZ - 2502793 - CVE-2026-47063 openjdk: OpenJDK: Enhance Jar handling (Oracle CPU 2026-07)
- BZ - 2503636 - CVE-2026-60147 openjdk: OpenJDK: Improve certification checking (Oracle CPU 2026-07)
CVEs
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/