{"id":"BIT-rclone-2026-88016","summary":"rclone: Directory metadata (chmod/chown/chtimes) applied through a planted symlink in rclone local --links escapes the destination","details":"rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.","aliases":["CVE-2026-88016","GHSA-f8g7-2xjc-7mfh","GO-2026-6459"],"modified":"2026-09-17T17:40:59.864498839Z","published":"2026-09-15T08:49:33.247Z","database_specific":{"cpes":["cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"FIX","url":"https://github.com/rclone/rclone/commit/17b0c03338a857bcb0a68d2d4c82ddbdec3f7893"},{"type":"FIX","url":"https://github.com/rclone/rclone/commit/a7ab39d3d1958afa1446982c1dc4e4a73a887e3e"},{"type":"ARTICLE","url":"https://github.com/rclone/rclone/releases/tag/v1.75.1"},{"type":"ADVISORY","url":"https://github.com/rclone/rclone/security/advisories/GHSA-f8g7-2xjc-7mfh"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88016"}],"affected":[{"package":{"name":"rclone","ecosystem":"Bitnami","purl":"pkg:bitnami/rclone"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.75.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/rclone/BIT-rclone-2026-88016.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L"}]}],"schema_version":"1.9.0"}