Vulnerability in rclone

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

rclone from v1.56.0 before v1.75.2 contains an information disclosure vulnerability in the WebDAV backend that forwards operator-configured custom credential headers to different hosts on HTTP 3xx redirects. Attackers who control or influence a cross-host redirect can capture headers such as X-Auth-Token set via --webdav-headers and replay them against the original WebDAV service.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund25 Oct 2026WID-SEC-2026-4156

  rclone: Multiple vulnerabilities Translated from German

  CVE-2026-116187CVE-2026-116191CVE-2026-116193+7 more CVEs

[ References ]References

• github.com/rclone/rclone/security/advisories/GHSA-3rqf-7h69-gg5vVendor Advisory
• www.vulncheck.com/advisories/rclone-1.56.0-before-1.75.2-webdav-credential-header-leak-…Third Party Advisory