What is CVE-2026-35345?

CVE-2026-35345 is a medium-severity vulnerability in Uutils Coreutils, classified under Improper Link Resolution Before File Access. CVSS score: 5.3/10. Published 2026-04-22.

How severe is CVE-2026-35345?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Uutils Coreutils

CVE-2026-35345

A vulnerability in the tail utility of uutils coreutils allows for the exfiltration of sensitive file contents when using the --follow=name option. Unlike GNU tail, the uutils implementation continues to monitor a path after it has been re…

EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Uutils Coreutils

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access
CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

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

Frequently asked questions

What is CVE-2026-35345?: CVE-2026-35345 is a medium-severity vulnerability in Uutils Coreutils, classified under Improper Link Resolution Before File Access. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-35345?: Medium severity. CVSS v3 base score is 5.3 out of 10.