In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
History

Sat, 04 Apr 2026 01:15:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Non‑fatal Group Privilege Drop in Sudo sudo: Sudo: Privilege escalation due to failure in privilege drop calls
Weaknesses CWE-272
References
Metrics threat_severity

None

threat_severity

Important


Fri, 03 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 03 Apr 2026 10:15:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Non‑fatal Group Privilege Drop in Sudo
First Time appeared Sudo Project
Sudo Project sudo
Vendors & Products Sudo Project
Sudo Project sudo

Fri, 03 Apr 2026 02:45:00 +0000

Type Values Removed Values Added
Description In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
Weaknesses CWE-271
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-04-04T03:55:19.379Z

Reserved: 2026-04-03T02:21:32.829Z

Link: CVE-2026-35535

cve-icon Vulnrichment

Updated: 2026-04-03T13:14:56.484Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-03T03:16:18.233

Modified: 2026-04-03T16:10:23.730

Link: CVE-2026-35535

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-03T02:21:33Z

Links: CVE-2026-35535 - Bugzilla