RHSA-2026:75579HighCVSS 7.8
Red Hat Security Advisory: sudo security update
🔗 CVE IDs covered (1)
📋 Description
CVE-2026-96512 — sudo: sudo: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization
🎯 Affected products35
- Red Hat Enterprise Linux AppStream (v. 10)
- Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-0:1.9.17-10.p2.el10_2.7.src as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debuginfo-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-debugsource-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-python-plugin-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-python-plugin-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-python-plugin-0:1.9.17-10.p2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-python-plugin-0:1.9.17-10.p2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-python-plugin-debuginfo-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
- sudo-python-plugin-debuginfo-0:1.9.17-10.p2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 10)
- sudo-python-plugin-debuginfo-0:1.9.17-10.p2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
- +5 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Append the 'Z' timezone suffix to all NOTBEFORE and NOTAFTER timestamps in sudoers rules. For example, change 'NOTAFTER=20261231235959' to 'NOTAFTER=20261231235959Z'. Timestamps with the 'Z' suffix are interpreted as UTC via timegm() and are not affected by the TZ environment variable. Administrators can audit their sudoers configuration with: grep -rE 'NOT(BEFORE|AFTER)=' /etc/sudoers /etc/sudoers.d/ and verify that all timestamps end with 'Z'.