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CVE-2026-35359

uutils coreutils cp Information Disclosure via Time-of-Check to Time-of-Use Symlink Swap PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Uutils / coreutilsaffected

CWE

CWE-367, CWE-59

References

ADP enrichment

CISA-ADP

No English description supplied.