[Pkg-rust-maintainers] Bug#1136042: rust-coreutils: CVE-2026-35352

[Moritz Mühlenhoff]

Source: rust-coreutils
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for rust-coreutils.

CVE-2026-35352[0]:
| A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the
| mkfifo utility of uutils coreutils. The utility creates a FIFO and
| then performs a path-based chmod to set permissions. A local
| attacker with write access to the parent directory can swap the
| newly created FIFO for a symbolic link between these two operations.
| This redirects the chmod call to an arbitrary file, potentially
| enabling privilege escalation if the utility is run with elevated
| privileges.

https://github.com/uutils/coreutils/issues/10020


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-35352
    https://www.cve.org/CVERecord?id=CVE-2026-35352

Please adjust the affected versions in the BTS as needed.