CVE-2026-35355

Name: CVE-2026-35355
Creator: NVD / NIST
Published: 2026-04-22T17:16:37.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.3/10EPSS 0.12%

Last modified Jun 17, 2026

CVE-2026-35355 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.

Metrics

CVSS 3.1

6.3/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

0.12%

2.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-367

Affected Software

Vendor	Product	Versions
Uutils	Coreutils	< 0.6.0

References

https://github.com/uutils/coreutils/pull/10067Exploit, Issue Tracking, Patch
https://github.com/uutils/coreutils/releases/tag/0.6.0Release Notes
https://github.com/uutils/coreutils/pull/10067Exploit, Issue Tracking, Patch

Timeline

Published: Apr 22, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35355?

How severe is CVE-2026-35355?

CVE-2026-35355 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35355?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST