What is CVE-2026-35357?

CVE-2026-35357 is a medium-severity vulnerability in Uutils Coreutils, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 4.7/10. Published 2026-04-22.

How severe is CVE-2026-35357?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Uutils Coreutils

CVE-2026-35357

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) late…

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.000 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Uutils Coreutils

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

github.com/uutils/coreutils/issues/10011 (issue-tracking)

Frequently asked questions

What is CVE-2026-35357?: CVE-2026-35357 is a medium-severity vulnerability in Uutils Coreutils, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 4.7/10. Published 2026-04-22.
How severe is CVE-2026-35357?: Medium severity. CVSS v3 base score is 4.7 out of 10.