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Date: Sun, 10 May 2026 20:05:51 +0200
To: submit@bugs.debian.org
Subject: rust-coreutils: CVE-2026-35374
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From: =?UTF-8?Q?Moritz_M=C3=BChlenhoff?= <jmm@inutil.org>
Delivered-To: submit@bugs.debian.org

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

Hi,

The following vulnerability was published for rust-coreutils.

CVE-2026-35374[0]:
| A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the
| split utility of uutils coreutils. The program attempts to prevent
| data loss by checking for identity between input and output files
| using their file paths before initiating the split operation.
| However, the utility subsequently opens the output file with
| truncation after this path-based validation is complete. A local
| attacker with write access to the directory can exploit this race
| window by manipulating mutable path components (e.g., swapping a
| path with a symbolic link). This can cause split to truncate and
| write to an unintended target file, potentially including the input
| file itself or other sensitive files accessible to the process,
| leading to permanent data loss.

https://github.com/uutils/coreutils/pull/11401


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-2026-35374
    https://www.cve.org/CVERecord?id=CVE-2026-35374

Please adjust the affected versions in the BTS as needed.
]