{"cve":"CVE-2026-79781","nvd":{"published":"2026-08-25T16:17:30.080","modified":"2026-09-10T20:46:19.780","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-22"],"references":["https://github.com/rclone/rclone/security/advisories/GHSA-8v25-v8p6-qf7v","https://www.vulncheck.com/advisories/rclone-serve-s3-path-traversal-via-dot-dot-object-keys","https://github.com/rclone/rclone/security/advisories/GHSA-8v25-v8p6-qf7v"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-79781","score":0.00302,"percentile":0.22992,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8v25-v8p6-qf7v","url":"https://osv.dev/vulnerability/GHSA-8v25-v8p6-qf7v","summary":" rclone: Path traversal in serve s3 allows reading and overwriting root-level files","modified":"2026-09-25T14:25:41.325941753Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.74.4"],"fixed":["1.74.4"]}]},{"id":"GO-2026-6189","url":"https://osv.dev/vulnerability/GO-2026-6189","summary":"Path traversal in serve s3 in github.com/rclone/rclone","modified":"2026-09-25T14:25:41.325941753Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.74.4"],"fixed":["1.74.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}