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CVE-2026-35345

uutils coreutils tail Privileged Information Disclosure via Symlink Replacement Race PUBLISHED

Description (CNA)

A vulnerability in the tail utility of uutils coreutils allows for the exfiltration of sensitive file contents when using the --follow=name option. Unlike GNU tail, the uutils implementation continues to monitor a path after it has been replaced by a symbolic link, subsequently outputting the contents of the link's target. In environments where a privileged user (e.g., root) monitors a log directory, a local attacker with write access to that directory can replace a log file with a symlink to a sensitive system file (such as /etc/shadow), causing tail to disclose the contents of the sensitive file.

Affected (CNA)

Vendor / productVersions
Uutils / coreutilsaffected

CWE

CWE-367, CWE-59

References

ADP enrichment

CISA-ADP

No English description supplied.