FKIE_CVE-2026-35359

Vulnerability from fkie_nvd - Published: 2026-04-22 17:16 - Updated: 2026-04-24 19:02
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.
References
security@ubuntu.comhttps://github.com/uutils/coreutils/issues/10017Exploit, Issue Tracking, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/uutils/coreutils/issues/10017Exploit, Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
uutils coreutils -
To clipboard 

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  "id": "CVE-2026-35359",
  "lastModified": "2026-04-24T19:02:25.720",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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