CVE-2026-35341 (GCVE-0-2026-35341)

Vulnerability from cvelistv5 – Published: 2026-04-22 16:07 – Updated: 2026-04-24 13:43
VLAI
Title
uutils coreutils mkfifo Unauthorized Permission Change on Existing Files
Summary
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.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 03:55 UTC
CWE
  • CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
canonical CNA under the mitre root
CNA scorecard B 80/100 over 103 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Uutils coreutils guessed Create a notification for this product.
Credits
Zellic
Show details on NVD website
To clipboard 

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