What is CVE-2026-35342?

CVE-2026-35342 is a low-severity vulnerability in Uutils Coreutils, classified under Insecure Temporary File. CVSS score: 3.3/10. Published 2026-04-22.

How severe is CVE-2026-35342?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Uutils Coreutils

CVE-2026-35342

The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid…

EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Uutils Coreutils — versions 0

Weakness classification (CWE)

CWE-377 — Insecure Temporary File

References

security@ubuntu.com (issue-tracking, Patch, patch, Issue Tracking)
security@ubuntu.com (vendor-advisory, Release Notes)

Frequently asked questions

What is CVE-2026-35342?: CVE-2026-35342 is a low-severity vulnerability in Uutils Coreutils, classified under Insecure Temporary File. CVSS score: 3.3/10. Published 2026-04-22.
How severe is CVE-2026-35342?: Low severity. CVSS v3 base score is 3.3 out of 10.