What is CVE-2026-35370?

CVE-2026-35370 is a medium-severity vulnerability in Uutils Coreutils, classified under Incorrect Authorization. CVSS score: 4.4/10. Published 2026-04-22.

How severe is CVE-2026-35370?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Auth bypass in Uutils Coreutils

CVE-2026-35370

The id utility in uutils coreutils miscalculates the groups= section of its output. The implementation uses a user's real GID instead of their effective GID to compute the group list, leading to potentially divergent output compared to GNU…

Vulnerability class: Broken Access Control

EPSS: 0.000 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Uutils Coreutils

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@ubuntu.com (issue-tracking, Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2026-35370?: CVE-2026-35370 is a medium-severity vulnerability in Uutils Coreutils, classified under Incorrect Authorization. CVSS score: 4.4/10. Published 2026-04-22.
How severe is CVE-2026-35370?: Medium severity. CVSS v3 base score is 4.4 out of 10.