CVE-2026-79781 — rclone serve s3 Path Traversal via dot-dot object keys
rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. A…
Published: 2026-08-25 · CVSS: 6.9 · CVSS 4.0
rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in the serve root directory.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7