ALSA-2026:88352: Important: java-17-openjdk security update for AlmaLinux 8

Q: Which systems should be prioritized for this update?

Prioritize AlmaLinux 8 systems with any listed java-17-openjdk package installed, including the runtime, development, demo, and fastdebug or slowdebug variants. The advisory covers fixes across network-facing and data-processing components such as TLS, LDAP, SASL, HTTP clients, XML, image handling, and diagnostic services.

Q: Are development and debug package installations included?

Yes. The affected package list includes java-17-openjdk-devel, java-17-openjdk-demo, and the listed fastdebug and slowdebug variants, in addition to java-17-openjdk itself.

Q: Can the advisory identify whether a particular application is exposed to a specific listed issue?

No. The provided advisory identifies affected Java package families and lists the CVEs, but does not provide per-CVE exploit prerequisites, affected configurations, or application-level exposure conditions.

Published Oct 27, 2026

Updated

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.

Affected Software

23 affected componentsFixes available

almalinux/java-17-openjdk<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-demo<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-demo-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-demo-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-devel<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-devel-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-devel-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-headless<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-headless-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-headless-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-javadoc<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-javadoc-zip<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-jmods<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-jmods-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-jmods-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-src<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-src-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-src-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-static-libs<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-static-libs-fastdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

almalinux/java-17-openjdk-static-libs-slowdebug<1:17.0.21.0.9-2.1.el8

1:17.0.21.0.9-2.1.el8

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade almalinux/java-17-openjdk to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-demo to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-demo-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-demo-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-devel to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-devel-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-devel-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-headless to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-headless-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-headless-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-javadoc to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-javadoc-zip to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-jmods to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-jmods-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-jmods-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-src to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-src-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-src-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-static-libs to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-static-libs-fastdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8
Upgrade
Upgrade almalinux/java-17-openjdk-static-libs-slowdebug to a version that resolves this vulnerability.
Fixed in 1:17.0.21.0.9-2.1.el8

Event History

Oct 27, 2026

Advisory Published

via OSV·12:00 AM

Data Sourced

via OSV·12:00 AM

DescriptionAffected Software

Frequently Asked Questions

Which systems should be prioritized for this update?

Prioritize AlmaLinux 8 systems with any listed java-17-openjdk package installed, including the runtime, development, demo, and fastdebug or slowdebug variants. The advisory covers fixes across network-facing and data-processing components such as TLS, LDAP, SASL, HTTP clients, XML, image handling, and diagnostic services.

Are development and debug package installations included?

Yes. The affected package list includes java-17-openjdk-devel, java-17-openjdk-demo, and the listed fastdebug and slowdebug variants, in addition to java-17-openjdk itself.

Can the advisory identify whether a particular application is exposed to a specific listed issue?

No. The provided advisory identifies affected Java package families and lists the CVEs, but does not provide per-CVE exploit prerequisites, affected configurations, or application-level exposure conditions.

ALSA-2026:88352: Important: java-17-openjdk security update for AlmaLinux 8

Affected Software

Remediation

Event History

Child vulnerabilities

Frequently Asked Questions

Which systems should be prioritized for this update?

Are development and debug package installations included?

Can the advisory identify whether a particular application is exposed to a specific listed issue?

Company

Resources

Contact

Frequently Asked Questions

Which systems should be prioritized for this update?

Are development and debug package installations included?

Can the advisory identify whether a particular application is exposed to a specific listed issue?