CVE-2026-35341

HIGH
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-04-22 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: None

Description

A vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files. When mkfifo fails to create a FIFO because a file already exists at the target path, it fails to terminate the operation for that path and continues to execute a follow-up set_permissions call. This results in the existing file's permissions being changed to the default mode (often 644 after umask), potentially exposing sensitive files such as SSH private keys to other users on the system.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
uutils coreutils -

References & Advisories (1)

https://github.com/uutils/coreutils/issues/10020
Exploit Issue Tracking Vendor Advisory

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.17%
Raw Score 0.001650
Percentile 5.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00165
2026-10-28
0.00165

Intelligence Sources

nvd ref →