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Medium, CVSS 6.3amended

rclone v1.56.0 before v1.75.2 WebDAV Credential Header Leak on Redirect

CVE-2026-116190GHSA-3rqf-7h69-gg5v

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (rclone 1.75.2), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Bitnami rclone

    Affected
    >= 1.56.0, < 1.75.2
    Fixed in
    1.75.2

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
6.3 · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · score source
EPSS
  • CVE-2026-116190: 0.19% estimated exploitation activity in the next 30 days; percentile 8.56 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from osv record BIT-rclone-2026-116190

  2. Revision 1 · created ·

    Published from osv record BIT-rclone-2026-116190

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-116190

Advisory: rclone v1.56.0 before v1.75.2 WebDAV Credential Header Leak on Redirect
IDs: CVE-2026-116190, GHSA-3rqf-7h69-gg5v
Record: https://patchnext.com/advisories/cve-2026-116190 (revision 2, source checked 31 Oct 2026, 07:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: rclone 1.75.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- Bitnami rclone: affected >= 1.56.0, < 1.75.2; fixed in 1.75.2

## Suggested inspection (read-only)
- Bitnami rclone: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on rclone.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/BIT-rclone-2026-116190 (OSV record BIT-rclone-2026-116190 lists affected ranges: Bitnami rclone >=1.56.0 <1.75.2 (fixed))

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