CVE-2026-79781rclone serve s3 Path Traversal via dot-dot object keys

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory (GHSA-8v25-v8p6-qf7v) vendor-advisory
• VulnCheck Advisory: rclone serve s3 Path Traversal via dot-dot object keys third-party-advisory