An update for sudo is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-4260 Final 1.0 1.0 2026-10-16 Initial 2026-10-16 2026-10-16 openEuler SA Tool V1.0 2026-10-16 sudo security update An update for sudo is now available for openEuler-24.03-LTS-SP3 Sudo is a program designed to allow a sysadmin to give limited root privileges to users and log root activity. The basic philosophy is to give as few privileges as possible but still allow people to get their work done. Security Fix(es): A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' 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.(CVE-2026-96512) An update for sudo is now available for openEuler-24.03-LTS-SP3. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High sudo https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4260 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-96512 https://nvd.nist.gov/vuln/detail/CVE-2026-96512 openEuler-24.03-LTS-SP3 sudo-1.9.15p5-9.oe2403sp3.aarch64.rpm sudo-debuginfo-1.9.15p5-9.oe2403sp3.aarch64.rpm sudo-debugsource-1.9.15p5-9.oe2403sp3.aarch64.rpm sudo-devel-1.9.15p5-9.oe2403sp3.aarch64.rpm sudo-1.9.15p5-9.oe2403sp3.src.rpm sudo-1.9.15p5-9.oe2403sp3.x86_64.rpm sudo-debuginfo-1.9.15p5-9.oe2403sp3.x86_64.rpm sudo-debugsource-1.9.15p5-9.oe2403sp3.x86_64.rpm sudo-devel-1.9.15p5-9.oe2403sp3.x86_64.rpm sudo-help-1.9.15p5-9.oe2403sp3.noarch.rpm A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' 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. 2026-10-16 CVE-2026-96512 openEuler-24.03-LTS-SP3 High 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H sudo security update 2026-10-16 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4260