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.
Metrics
Affected Vendors & Products
References
History
Tue, 25 Aug 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 25 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | rclone before 1.74.4 Privilege Escalation via setuid Metadata | |
| First Time appeared |
Rclone
Rclone rclone |
|
| Weaknesses | CWE-732 | |
| CPEs | cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Rclone
Rclone rclone |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-25T16:11:49.885Z
Reserved: 2026-08-25T14:32:37.762Z
Link: CVE-2026-79783
Updated: 2026-08-25T16:11:42.411Z
Status : Received
Published: 2026-08-25T16:17:30.383
Modified: 2026-08-25T17:18:18.403
Link: CVE-2026-79783
No data.
OpenCVE Enrichment
Updated: 2026-08-25T17:00:04Z