Important: java-25-openjdk security update
The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit. Security Fix(es): * JDK: Improve JMX connections (CVE-2026-21925) * JDK: Improve HttpServer Request handling (CVE-2026-21933) * JDK: Enhance Certificate Checking (CVE-2026-21945) * libpng: LIBPNG buffer overflow (CVE-2025-64720) * libpng: LIBPNG heap buffer overflow (CVE-2025-65018) 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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit. Security Fix(es): * JDK: Improve JMX connections (CVE-2026-21925) * JDK: Improve HttpServer Request handling (CVE-2026-21933) * JDK: Enhance Certificate Checking (CVE-2026-21945) * libpng: LIBPNG buffer overflow (CVE-2025-64720) * libpng: LIBPNG heap buffer overflow (CVE-2025-65018) 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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:0933
- https://access.redhat.com/security/cve/CVE-2025-64720
- https://access.redhat.com/security/cve/CVE-2025-65018
- https://access.redhat.com/security/cve/CVE-2026-21925
- https://access.redhat.com/security/cve/CVE-2026-21933
- https://access.redhat.com/security/cve/CVE-2026-21945
- https://errata.almalinux.org/10/ALSA-2026-0933.html
- https://errata.almalinux.org/9/ALSA-2026-0933.html