RHSA-2026:0933 — Security Advisory
Red Hat Security Advisory: java-25-openjdk security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · January 27, 2026
Updated · November 2, 2026
Topic
An update for java-25-openjdk is now available for Red Hat Enterprise Linux 9 and Red Hat Enterprise Linux 10.
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.
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)
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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.