A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.
Metrics
Affected Vendors & Products
References
| Link | Providers |
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| https://github.com/uutils/coreutils/issues/10015 |
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History
Wed, 22 Apr 2026 18:15:00 +0000
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ssvc
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Wed, 22 Apr 2026 16:30:00 +0000
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| Description | A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source. | |
| Title | uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition | |
| Weaknesses | CWE-367 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2026-04-22T17:22:25.742Z
Reserved: 2026-04-02T12:58:56.088Z
Link: CVE-2026-35364
Updated: 2026-04-22T17:21:39.628Z
Status : Awaiting Analysis
Published: 2026-04-22T17:16:39.737
Modified: 2026-04-22T21:23:52.620
Link: CVE-2026-35364
No data.
OpenCVE Enrichment
Updated: 2026-04-22T18:15:15Z