rclone: rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local b...
CVE-2026-79783 is fixed in 3 products on 1 platform, first by ALAS2023-2026-3129, released September 28, 2026. It is not reported as exploited. Patch Radar priority: High.
rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid binary that escalates privileges to root if rclone runs as root, or to the service account user otherwise.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rclone · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
| rclone-debuginfo · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
| rclone-debugsource · amzn 2023 | 1.75.1-1.amzn2023 | ALAS2023-2026-3129 | Sep 28, 2026 |
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