https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 17:02:20 +0000 https://db.gcve.eu/vuln/fkie_cve-2026-96512 <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> https://db.gcve.eu/vuln/fkie_cve-2026-96512 https://db.gcve.eu/vuln/ghsa-jj2h-hcrf-9gfx <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> https://db.gcve.eu/vuln/ghsa-jj2h-hcrf-9gfx https://db.gcve.eu/vuln/rhsa-2026:71609 <p>sudo: sudo: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization</p> <p>sudo: sudo: TZ environment variable allows bypass of NOTBEFORE/NOTAFTER time-based authorization</p> https://db.gcve.eu/vuln/rhsa-2026:71609 https://db.gcve.eu/vuln/ubuntu-cve-2026-96512 <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: sudo, Ubuntu:Pro:16.04:LTS: sudo, Ubuntu:Pro:18.04:LTS: sudo, Ubuntu:Pro:20.04:LTS: sudo, Ubuntu:22.04:LTS: sudo, Ubuntu:24.04:LTS: sudo, Ubuntu:26.04:LTS: sudo</p> <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: sudo, Ubuntu:Pro:16.04:LTS: sudo, Ubuntu:Pro:18.04:LTS: sudo, Ubuntu:Pro:20.04:LTS: sudo, Ubuntu:22.04:LTS: sudo, Ubuntu:24.04:LTS: sudo, Ubuntu:26.04:LTS: sudo</p> <p>A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing &#39;Z&#39; timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.</p> https://db.gcve.eu/vuln/ubuntu-cve-2026-96512