{"cve":"CVE-2026-79783","nvd":{"published":"2026-08-25T16:17:30.383","modified":"2026-09-10T20:46:19.780","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","score":3.6},"cwes":["CWE-732"],"references":["https://github.com/rclone/rclone/security/advisories/GHSA-945v-v9p3-v5xw","https://www.vulncheck.com/advisories/rclone-before-privilege-escalation-via-setuid-metadata","https://github.com/rclone/rclone/security/advisories/GHSA-945v-v9p3-v5xw"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-79783","score":0.00227,"percentile":0.13548,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-945v-v9p3-v5xw","url":"https://osv.dev/vulnerability/GHSA-945v-v9p3-v5xw","summary":"rclone local `--metadata` applies attacker-controlled mode/uid - setuid binary planted from an untrusted remote","modified":"2026-09-25T14:25:48.311310825Z","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-2026-6190","url":"https://osv.dev/vulnerability/GO-2026-6190","summary":"Unsafe file permission restoration from metadata in github.com/rclone/rclone","modified":"2026-09-25T14:25:48.311310825Z","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."]}