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
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References
| Link | Providers |
|---|---|
| https://github.com/uutils/coreutils/issues/10015 |
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History
Wed, 22 Apr 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2026-04-22T17:22:25.742Z
Reserved: 2026-04-02T12:58:56.088Z
Link: CVE-2026-35364
Vulnrichment
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NVD
Status : Received
Published: 2026-04-22T17:16:39.737
Modified: 2026-04-22T17:16:39.737
Link: CVE-2026-35364
Redhat
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OpenCVE Enrichment
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