RHSA-2026:88352 — Security Advisory

An update for java-17-openjdk is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Extended Update Support, and Red Hat Enterprise Linux 8.

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.

The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Development Kit.

Security Fix(es):

• JDK: Enhance PKCS5 padding (CVE-2026-83374)

• JDK: Enhance TLS certificate handling (CVE-2026-83376)

• 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 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: 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 Image Processing (CVE-2026-91382)

• 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.