Information disclosure in Rclone
CVE-2026-116190
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.
Vulnerability class: Information Disclosure
Published .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/rclone/rclone/security/advisories/GHSA-3rqf-7h69-gg5v (vendor-advisory)
- www.vulncheck.com/advisories/rclone-1.56.0-before-1.75.2-webdav-credential-head… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116190?
- CVE-2026-116190 is a low-severity vulnerability in Rclone, classified under Information Disclosure. CVSS score: 3.7/10. Published 2026-10-25.
- How severe is CVE-2026-116190?
- Low severity. CVSS v3 base score is 3.7 out of 10.