Important: java-17-openjdk security update
The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 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-142862, AlmaLinux-142881, AlmaLinux-142882, AlmaLinux-142883, AlmaLinux-142884, AlmaLinux-142885, AlmaLinux-142886, AlmaLinux-142887, AlmaLinux-142888) 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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The java-17-openjdk packages provide the OpenJDK 17 Java Runtime Environment and the OpenJDK 17 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-142862, AlmaLinux-142881, AlmaLinux-142882, AlmaLinux-142883, AlmaLinux-142884, AlmaLinux-142885, AlmaLinux-142886, AlmaLinux-142887, AlmaLinux-142888) 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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:0927
- https://access.redhat.com/security/cve/CVE-2025-64720
- https://access.redhat.com/security/cve/CVE-2025-65018
- https://access.redhat.com/security/cve/CVE-2026-21925
- https://access.redhat.com/security/cve/CVE-2026-21933
- https://access.redhat.com/security/cve/CVE-2026-21945
- https://errata.almalinux.org/8/ALSA-2026-0927.html
- https://errata.almalinux.org/9/ALSA-2026-0927.html