Sudo: sudo: tz environment variable allows bypass of notbefore/notafter time-based authorization
CVE-2026-96512 is fixed in 10 products on 1 platform, first by libnss-sudo 1.9.17p2-1ubuntu3.2, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.
The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root. Security Fix(es): * sudo: sudo: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization (CVE-2026-96512) 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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libnss-sudo · Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.4 | libnss-sudo 1.9.15p5-3ubuntu5.24.04.4 | Oct 8, 2026 |
| libnss-sudo · Ubuntu 26.04.1 LTS (resolute) | 1.9.17p2-1ubuntu3.2 | libnss-sudo 1.9.17p2-1ubuntu3.2 | Sep 23, 2026 |
| sudo · Debian 14 | 1.9.17p2-9 | DEBIAN-CVE-2026-96512 | Oct 5, 2026 |
| sudo · RHEL 10 | 1.9.15-8.p5.el10_0.5 | RHSA-2026:86633 | Oct 5, 2026 |
| sudo · RHEL 8 | 0:1.9.5p2-2.el8_10 | RHSA-2026:75580 | Oct 5, 2026 |
| sudo · RHEL 9 | 0:1.9.17p2-3.el9_8.3 | RHSA-2026:75571 | Oct 5, 2026 |
| sudo · Ubuntu 22.04.1 LTS (jammy) | 1.9.9-1ubuntu2.7 | sudo 1.9.9-1ubuntu2.7 | Oct 8, 2026 |
| sudo · Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.4 | sudo 1.9.15p5-3ubuntu5.24.04.4 | Oct 8, 2026 |
| sudo · Ubuntu 26.04.1 LTS (resolute) | 1.9.17p2-1ubuntu3.2 | sudo 1.9.17p2-1ubuntu3.2 | Sep 23, 2026 |
| sudo · almalinux 10 | 1.9.17-10.p2.el10_2.7 | ALSA-2026:75579 | Oct 5, 2026 |
| sudo · almalinux 8 | 1.9.5p2-2.el8_10 | ALSA-2026:75580 | Oct 5, 2026 |
| sudo · almalinux 9 | 1.9.17p2-3.el9_8.3 | ALSA-2026:75571 | Oct 5, 2026 |
| sudo · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo · ol 10 | 0:1.9.17-10.p2.el10_2.7 | ELSA-2026-75579 | Oct 6, 2026 |
| sudo · ol 8 | 0:1.9.5p2-2.0.1.el8_10 | ELSA-2026-75580 | Oct 5, 2026 |
| sudo · ol 9 | 0:1.9.17p2-3.el9_8.3 | ELSA-2026-75571 | Oct 5, 2026 |
| sudo · rocky 10 | 0:1.9.17-10.p2.el10_2.7 | RLSA-2026:75579 | Oct 6, 2026 |
| sudo · rocky 8 | 0:1.9.5p2-2.el8_10 | RLSA-2026:75580 | Oct 6, 2026 |
| sudo · rocky 9 | 0:1.9.17p2-3.el9_8.3 | RLSA-2026:75571 | Oct 6, 2026 |
| sudo-debuginfo · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-debugsource · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-devel · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-ldap · Ubuntu 22.04.1 LTS (jammy) | 1.9.9-1ubuntu2.7 | sudo-ldap 1.9.9-1ubuntu2.7 | Oct 8, 2026 |
| sudo-ldap · Ubuntu 24.04.5 LTS (noble) | 1.9.15p5-3ubuntu5.24.04.4 | sudo-ldap 1.9.15p5-3ubuntu5.24.04.4 | Oct 8, 2026 |
| sudo-logsrvd · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-logsrvd-debuginfo · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-python-plugin · RHEL 9 | 0:1.9.17p2-3.el9_8.3 | RHSA-2026:75571 | Oct 5, 2026 |
| sudo-python-plugin · almalinux 10 | 1.9.17-10.p2.el10_2.7 | ALSA-2026:75579 | Oct 5, 2026 |
| sudo-python-plugin · almalinux 9 | 1.9.17p2-3.el9_8.3 | ALSA-2026:75571 | Oct 5, 2026 |
| sudo-python-plugin · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
| sudo-python-plugin · ol 10 | 0:1.9.17-10.p2.el10_2.7 | ELSA-2026-75579 | Oct 6, 2026 |
| sudo-python-plugin · ol 9 | 0:1.9.17p2-3.el9_8.3 | ELSA-2026-75571 | Oct 5, 2026 |
| sudo-python-plugin-debuginfo · amzn 2023 | 1.9.15-1.p5.amzn2023.0.4 | ALAS2023-2026-3156 | Nov 7, 2026 |
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