rclone: Local Encoding Path Traversal

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:L

EPSS

• CVE-2026-71313: 0.30% estimated exploitation activity in the next 30 days; percentile 22.53 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary The local backend relies on its configurable filename encoder to prevent remote filename data from becoming operating-system path syntax. If a local destination uses an encoding that omits Dot, such as Slash, None, or Raw, a remote object's standard-encoded ．． component is decoded into an actual .. component. backend/local.localPath then passes the decoded name to filepath.Join, which resolves the component and produces a path outside the configured local root. An attacker who can create object names in a remote source that a victim copies or synchronizes to such a local destination can create or overwrite files outside the selected destination directory, with the permissions of the rclone process. The default local encoding includes Dot and is not affected by that exact path. This finding requires a non-default local encoding that preserves filesystem path syntax. On Windows, a second confirmed form uses a preserved backslash to turn a remote filename into a native ..\file…

Published by the source

5 Aug 2026, 20:48 UTC

Last modified by the source

18 Aug 2026, 17:24 UTC

Source last checked

26 Oct 2026, 15:28 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-7p4m-qxvv-g567

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GO-2026-6186

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-7p4m-qxvv-g567

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# Patch Next advisory brief: CVE-2026-71313

Advisory: rclone: Local Encoding Path Traversal
IDs: CVE-2026-71313, GHSA-7p4m-qxvv-g567
Record: https://patchnext.com/advisories/cve-2026-71313 (revision 3, source checked 26 Oct 2026, 15:28 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/rclone/rclone 1.75.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/rclone/rclone: affected >= 1.51.0, <= 1.74.4; fixed in 1.75.0

## Suggested inspection (read-only)
- Go github.com/rclone/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 github.com/rclone/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/GHSA-7p4m-qxvv-g567 (OSV record GHSA-7p4m-qxvv-g567 lists affected ranges: Go github.com/rclone/rclone >=1.51.0 <1.75.0 (fixed))
- Verified: https://osv.dev/vulnerability/GO-2026-6186 (OSV record GO-2026-6186 lists affected ranges: Go github.com/rclone/rclone >=1.51.0 <1.75.0 (fixed))
- Verified: https://github.com/advisories/GHSA-7p4m-qxvv-g567 (GitHub-reviewed advisory GHSA-7p4m-qxvv-g567 lists affected ranges: Go github.com/rclone/rclone >=1.51.0 <=1.74.4)

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