CVE-2026-35535

HIGH

Sudo - Privilege Escalation

Title source: rule

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.

References (4)

https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69

View Patch ZIP pw:eip

https://www.qualys.com/2026/03/10/crack-armor.txt

https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042

https://bugs.debian.org/1130593

Scores

CVSS v3 7.4

EPSS 0.0001

EPSS Percentile 0.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-271

Status published

Products (1)

Sudo project/Sudo < 3e474c2f201484be83d994ae10a4e20e8c81bb69

Published Apr 03, 2026

Tracked Since Apr 03, 2026