FKIE_CVE-2026-35341

Vulnerability from fkie_nvd - Published: 2026-04-22 17:16 - Updated: 2026-04-24 19:05
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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.
References
security@ubuntu.comhttps://github.com/uutils/coreutils/issues/10020Exploit, Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
uutils coreutils -
To clipboard 

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      "value": "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\u0027s 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."
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  "id": "CVE-2026-35341",
  "lastModified": "2026-04-24T19:05:55.067",
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          "attackComplexity": "LOW",
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          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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