AlmaLinux alert ALSA-2026:0928 (java-21-openjdk)

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[Announce] [Security Advisory] ALSA-2026:0928: java-21-openjdk security update (Important)
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Sat, 24 Jan 2026 03:03:14 +0000
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<0100019bedf4b028-ca35b72c-fe5d-44f2-96b8-7a1cdc05d1e8-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-01-24

Summary:

The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 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)


Bug Fix(es):  

  * When using a P11SecretKey for both signing and encryption in FIPS mode, the FIPS PKCS11
provider would fail with a CKR_ATTRIBUTE_VALUE_INVALID error. This was due to the default
configuration not applying the CKA_ENCRYPT=true attribute to the key. The configuration in this
release is updated to include this attribute. (AlmaLinux-142860, AlmaLinux-142876,
AlmaLinux-142877, AlmaLinux-142878, AlmaLinux-142879, AlmaLinux-142880)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-0928.html

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Kind regards,
AlmaLinux Team
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