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CVE-2026-35355

uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race PUBLISHED

Description (CNA)

The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.

Affected (CNA)

Vendor / productVersions
Uutils / coreutilsaffected 0 before 0.6.0

CWE

CWE-367

References

ADP enrichment

CISA-ADP

No English description supplied.