{"cve":"CVE-2026-88046","nvd":{"published":"2026-09-10T17:17:08.677","modified":"2026-09-15T15:17:24.440","status":"Awaiting Analysis","description":"rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone core does not reject parent-directory segments in source Object.Remote() values before fs/list, fs/walk, fs/sync, and fs/operations pass those values to destination backends. A flat-keyspace source object store populated with native non-rclone tooling can contain a raw .. key segment, and affected b2, swift, qingstor, oracleobjectstorage, internetarchive, smb, storj, sftp, webdav, ftp, filelu, shade, and sia destinations use path.Join(root, remote) before EncodeDot can neutralize the segment. A copy or upload can therefore escape the configured root into another bucket, share, or path reachable by the victim credential, with sftp and smb potentially reaching other filesystem or share locations under the same login authority. This issue is fixed in version 1.75.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":5.3},"cwes":["CWE-22"],"references":["https://github.com/rclone/rclone/commit/57842c5ee4e1407eda06a414a36510cce2db4252","https://github.com/rclone/rclone/releases/tag/v1.75.1","https://github.com/rclone/rclone/security/advisories/GHSA-38xv-hf3p-h7mq"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:52:53.108888569+00:00"},"epss":{"cve":"CVE-2026-88046","score":0.00294,"percentile":0.22095,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-38xv-hf3p-h7mq","url":"https://osv.dev/vulnerability/GHSA-38xv-hf3p-h7mq","summary":"rclone: source object names can escape the configured root on upload","modified":"2026-09-19T09:25:54.228971375Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.75.1"],"fixed":["1.75.1"]}]},{"id":"GO-2026-6457","url":"https://osv.dev/vulnerability/GO-2026-6457","summary":"rclone: source object names can escape the configured root on upload in github.com/rclone/rclone","modified":"2026-09-19T09:25:54.228971375Z","packages":[{"ecosystem":"Go","name":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","ranges":["<1.75.1"],"fixed":["1.75.1"]}]}],"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."]}