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GHSA-hpfw-mqm3-33jh

uutils coreutils has a Link Following issue

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-35359

Packages

EcosystemPackageAffectedFixed in
crates.io coreutils <= 0.8.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.