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.
Fixed packages 69
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | java-21-openjdk | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-demo | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-demo-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-demo-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-devel | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-devel-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-devel-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-headless | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-headless-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-headless-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-javadoc | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-javadoc-zip | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-jmods | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-jmods-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-jmods-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-src | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-src-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-src-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-static-libs | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-static-libs-fastdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 10 | java-21-openjdk-static-libs-slowdebug | 1:21.0.10.0.7-1.el10.alma.1 |
| AlmaLinux · 8 | java-21-openjdk | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-demo | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-demo-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-demo-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-devel | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-devel-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-devel-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-headless | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-headless-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-headless-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-javadoc | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-javadoc-zip | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-jmods | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-jmods-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-jmods-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-src | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-src-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-src-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-static-libs | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-static-libs-fastdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 8 | java-21-openjdk-static-libs-slowdebug | 1:21.0.10.0.7-1.el8 |
| AlmaLinux · 9 | java-21-openjdk | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-demo | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-demo-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-demo-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-devel | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-devel-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-devel-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-headless | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-headless-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-headless-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-javadoc | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-javadoc-zip | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-jmods | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-jmods-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-jmods-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-src | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-src-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-src-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-static-libs | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-static-libs-fastdebug | 1:21.0.10.0.7-1.el9.alma.1 |
| AlmaLinux · 9 | java-21-openjdk-static-libs-slowdebug | 1:21.0.10.0.7-1.el9.alma.1 |
Vulnerabilities 5
-
High 7.5
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java S…
-
High 7.1CVE-2025-64720 Public exploit
LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when proces…
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High 7.1CVE-2025-65018 Public exploit
LIBPNG is vulnerable to a heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read`
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API functio…
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Medium 6.1
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java S…
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Medium 4.8
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java S…
References
-
report
https://access.redhat.com/security/cve/CVE-2025-64720
-
report
https://access.redhat.com/security/cve/CVE-2025-65018
-
report
https://access.redhat.com/security/cve/CVE-2026-21925
-
report
https://access.redhat.com/security/cve/CVE-2026-21933
-
report
https://access.redhat.com/security/cve/CVE-2026-21945
-
advisory
https://errata.almalinux.org/10/ALSA-2026-0928.html
-
advisory
https://errata.almalinux.org/8/ALSA-2026-0928.html
-
advisory
https://errata.almalinux.org/9/ALSA-2026-0928.html