CVE-2026-79783
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.
Scoring
- Severity
- LOW
- CVSS base score
- 3.6
- CVSS vector
- CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.14%
- CWE
- CWE-732
- Published
- 2026-08-25
- Last modified
- 2026-08-25
Affected products
- rclone rclone
- rclone rclone
Weakness type
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