Oracle alert ELSA-2026-19357 (krb5)

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[El-errata] ELSA-2026-19357 Important: Oracle Linux 9 krb5 security update
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Thu, 25 Jun 2026 22:00:13 -0700
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<mailman.91.1782450027.18.el-errata@oss.oracle.com>
Oracle Linux Security Advisory ELSA-2026-19357

http://linux.oracle.com/errata/ELSA-2026-19357.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
krb5-devel-1.21.1-10.0.1.el9_8.i686.rpm
krb5-devel-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-libs-1.21.1-10.0.1.el9_8.i686.rpm
krb5-libs-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-pkinit-1.21.1-10.0.1.el9_8.i686.rpm
krb5-pkinit-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-server-1.21.1-10.0.1.el9_8.i686.rpm
krb5-server-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-server-ldap-1.21.1-10.0.1.el9_8.i686.rpm
krb5-server-ldap-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-workstation-1.21.1-10.0.1.el9_8.x86_64.rpm
krb5-xrealmauthz-1.21.1-10.0.1.el9_8.i686.rpm
krb5-xrealmauthz-1.21.1-10.0.1.el9_8.x86_64.rpm
libkadm5-1.21.1-10.0.1.el9_8.i686.rpm
libkadm5-1.21.1-10.0.1.el9_8.x86_64.rpm

aarch64:
krb5-devel-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-libs-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-pkinit-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-server-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-server-ldap-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-workstation-1.21.1-10.0.1.el9_8.aarch64.rpm
krb5-xrealmauthz-1.21.1-10.0.1.el9_8.aarch64.rpm
libkadm5-1.21.1-10.0.1.el9_8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/krb5-1.21.1-10.0....

Related CVEs:

CVE-2026-40355
CVE-2026-40356




Description of changes:

[1.21.1-10.0.1]
- Fixed race condition in krb5_set_password() [Orabug: 33609767]

[1.21.1-10]
- Fix NegoEx parsing vulnerabilities (CVE-2026-40355, CVE-2026-40356)
  Resolves: RHEL-171590 RHEL-171596


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