ALSA-2026:88349

[ALSA-2026:88349] Important: java-21-openjdk security update for AlmaLinux 8 and 9

Type:

security

Severity:

important

Release date:

2026-10-30

Description:

The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java Software Development Kit.  

Security Fix(es):  

  * JDK: Enhance PKCS5 padding (CVE-2026-83374)
  * JDK: Enhance TLS certificate handling (CVE-2026-83376)
  * JDK: Improve C2 loop transformations (CVE-2026-83378)
  * JDK: Enhance LDAP logins (CVE-2026-83380)
  * JDK: Enhance SASL Authentication (CVE-2026-83381)
  * JDK: Enhance WebRowSets (CVE-2026-83387)
  * JDK: Enhance HTTP Client Response Handling (CVE-2026-83395)
  * JDK: Enhance XML Processing (CVE-2026-83400)
  * JDK: Enhance XPath Expressions (CVE-2026-87290)
  * JDK: Enhance HTTP Server (CVE-2026-87291)
  * JDK: Enhance Network Clients (CVE-2026-87292)
  * JDK: Enhance Certificate Name Checks (CVE-2026-87294)
  * JDK: Enhance Template Handling (CVE-2026-87367)
  * JDK: Enhance HTTP Client (CVE-2026-91332)
  * JDK: Improve ciphertext handling (CVE-2026-91333)
  * JDK: Enhance JPEG loading (CVE-2026-91334)
  * JDK: Enhance Image Handling (CVE-2026-91335)
  * JDK: Enhance TLS handshakes (CVE-2026-91373)
  * JDK: Enhance jstatd (CVE-2026-91374)
  * JDK: Enhance jmod handling (CVE-2026-91375)
  * JDK: Enhance JShell (CVE-2026-91379)
  * JDK: Enhance Preferences (CVE-2026-91380)
  * JDK: Enhance HTTP client caching (CVE-2026-91394)
  * JDK: Enhance diagnostic sessions (CVE-2026-91397)
  * JDK: Enhance SOCKS5 support (CVE-2026-91398)
  * JDK: Enhance MIDI file handling (CVE-2026-91400)
  * JDK: Enhance zipfs (CVE-2026-91410)
  * JDK: Enhance font rendering (CVE-2026-91415)
  * JDK: Enhance GIF loading (CVE-2026-91418)
  * JDK: Enhance HTTP server parsing (CVE-2026-91451)
  * JDK: Enhance HTTP server (CVE-2026-91452)
  * JDK: Improve HTTP headers (CVE-2026-91453)
  * JDK: Enhance TLS Extensions (CVE-2026-91461)
  * JDK: Enhance krb5 tokens (CVE-2026-91462)
  * JDK: Enhance krb5 client (CVE-2026-91463)
  * JDK: Enhance Kerberos validation (CVE-2026-91464)
  * JDK: Enhance C2 comparisons (CVE-2026-91487)
  * JDK: Enhance Certificate Constraint Checking (CVE-2026-101516)


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.  

Note that the OpenJDK RPMs use the system certificate store, so the eMudhra CVEs (CVE-2026-91403 & CVE-2026-114820) should be resolved by updating the ca-certificates package.

References:

Updated packages listed below:

Architecture	Package	Checksum
aarch64	java-21-openjdk-21.0.13.0.9-1.1.el8.aarch64.rpm	3c89d6612c17accf51c3b2187ccc7c579f6b71aae89ca4cc1b32534a1477a0a0

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.