CVE-2026-82474
Publication date 31 August 2026
Last updated 31 August 2026
Ubuntu priority
Description
Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| sudo | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version:
Base score
8.5 · High
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base score
7.8 · High
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-82474
- https://github.com/sudo-project/sudo/commit/71fbe42dcd5a1c8f799540583a2dfb2ae6221edf
- https://github.com/sudo-project/sudo
- https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c
- https://www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveat