CVE-2026-79783
Fixed upstream EPSS <1%CVSS 3.6
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.
Products: rclone
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/rclone/rclone | 1.74.4 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | rclone | no fix |
| Debian 13 | rclone | no fix |
| Ubuntu 18.04 LTS | rclone | no fix |
| Ubuntu 26.10 | rclone | no fix |
| Ubuntu Pro 20.04 LTS | rclone | no fix |
| Ubuntu Pro 22.04 LTS | rclone | no fix |
| Ubuntu Pro 24.04 LTS | rclone | no fix |
| Ubuntu Pro 26.04 LTS | rclone | no fix |