Red Hat Security Advisory: java-21-openjdk security update
Red Hat has issued a security advisory for java-21-openjdk addressing three vulnerabilities in the OpenJDK 21 runtime environment. The issues fixed include enhancements to Buffered Image handling (CVE-2025-30698), improvements to compiler transformations (CVE-2025-30691), and better TLS connection support (CVE-2025-21587). These vulnerabilities have been rated with a moderate security impact by Red Hat. The advisory applies to Red Hat Enterprise Linux 10 and related variants. No known exploits are reported in the wild. A security update is available to address these issues.
AI Analysis
Technical Summary
This advisory covers three security fixes in the OpenJDK 21 runtime environment as distributed by Red Hat for Enterprise Linux 10. The vulnerabilities addressed are CVE-2025-30698 (Buffered Image handling), CVE-2025-30691 (compiler transformations), and CVE-2025-21587 (TLS connection support). Red Hat has released updated java-21-openjdk packages that include these fixes. The issues are rated as moderate in severity and affect multiple architectures and variants of Red Hat Enterprise Linux 10. The advisory references Oracle CPU 2025-04 for the original fixes and provides links for applying the update.
Potential Impact
The vulnerabilities affect the OpenJDK 21 runtime environment and could potentially impact applications relying on Buffered Image processing, compiler transformations, and TLS connections. Red Hat rates the overall security impact as moderate. There are no reports of active exploitation in the wild at this time. The issues could lead to security weaknesses if left unpatched, but specific exploitation details are not provided.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk on Red Hat Enterprise Linux 10 that addresses these vulnerabilities. Users should apply the update as described in the Red Hat advisory (RHSA-2025:7508) and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. Since this is an official fix, applying the update fully mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: java-21-openjdk security update
Description
Red Hat has issued a security advisory for java-21-openjdk addressing three vulnerabilities in the OpenJDK 21 runtime environment. The issues fixed include enhancements to Buffered Image handling (CVE-2025-30698), improvements to compiler transformations (CVE-2025-30691), and better TLS connection support (CVE-2025-21587). These vulnerabilities have been rated with a moderate security impact by Red Hat. The advisory applies to Red Hat Enterprise Linux 10 and related variants. No known exploits are reported in the wild. A security update is available to address these issues.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers three security fixes in the OpenJDK 21 runtime environment as distributed by Red Hat for Enterprise Linux 10. The vulnerabilities addressed are CVE-2025-30698 (Buffered Image handling), CVE-2025-30691 (compiler transformations), and CVE-2025-21587 (TLS connection support). Red Hat has released updated java-21-openjdk packages that include these fixes. The issues are rated as moderate in severity and affect multiple architectures and variants of Red Hat Enterprise Linux 10. The advisory references Oracle CPU 2025-04 for the original fixes and provides links for applying the update.
Potential Impact
The vulnerabilities affect the OpenJDK 21 runtime environment and could potentially impact applications relying on Buffered Image processing, compiler transformations, and TLS connections. Red Hat rates the overall security impact as moderate. There are no reports of active exploitation in the wild at this time. The issues could lead to security weaknesses if left unpatched, but specific exploitation details are not provided.
Mitigation Recommendations
Red Hat has released an official security update for java-21-openjdk on Red Hat Enterprise Linux 10 that addresses these vulnerabilities. Users should apply the update as described in the Red Hat advisory (RHSA-2025:7508) and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. Since this is an official fix, applying the update fully mitigates the vulnerabilities. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:7508
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-30691","CVE-2025-30698"]
- Cvss Version
- null
Threat ID: 6a160985e29bf47b50651e5f
Added to database: 5/26/2026, 8:58:45 PM
Last enriched: 5/26/2026, 9:21:53 PM
Last updated: 5/27/2026, 5:01:06 AM
Views: 2
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