rclone serve docker Path Traversal via Volume Name

Description

rclone versions 1.56.0 through 1.75.0 contain a path traversal vulnerability in the `rclone serve docker` volume plugin. newVolume() in cmd/serve/docker/volume.go computes a volume's mountpoint as filepath.Join(drv.root, name) from the attacker-supplied `name` field of a Docker VolumeDriver.Create request without verifying that the result stays within drv.root (default /var/lib/docker-volumes/rclone), and checkMountpoint() then creates that directory with file.MkdirAll before mounting. A volume name containing enough `..` components (e.g. "../../../../../../etc") therefore resolves outside the base directory, allowing anyone able to submit a VolumeDriver.Create request to the plugin socket — normally the Docker daemon, or a workload that can request named volumes in a multi-tenant orchestration setup — to make the privileged rclone plugin process create a directory and mount a remote filesystem specified in the same request at an arbitrary host path, shadowing or disrupting system directories. The advisory notes Volume.restoreState() had the same missing validation when reloading persisted volume state. Fixed in 1.75.1.

Scores

EPSS (exploitation in 30 days)

0.15% · top 96% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.

Weakness

• CWE-73: External Control of File Name or Path (opens in a new tab)All about CWE-73 and its CVEs

Affected products

• rclone · rclone

  • affected 1.56.0 – < 1.75.1
  • unaffected 1.75.1

References (2)

• GitHub Security Advisory (GHSA-p6vx-hf7p-98j6) (opens in a new tab)vendor-advisoryexploit
• VulnCheck Advisory: rclone serve docker Path Traversal via Volume Name (opens in a new tab)third-party-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-93987](https://trackcve.app/badge/CVE-2026-93987.svg)](https://trackcve.app/cve/CVE-2026-93987)

Record last updated 21 Sept 2026, 18:29 UTC.