GHSA-xmv6-r34m-62p4

Suggest an improvement
Source
https://github.com/advisories/GHSA-xmv6-r34m-62p4
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xmv6-r34m-62p4/GHSA-xmv6-r34m-62p4.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-xmv6-r34m-62p4
Downstream
Published
2026-03-03T22:08:54Z
Modified
2026-03-04T15:18:19Z
Severity
  • 7.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator
Summary
OpenClaw: Sandbox media fallback tmp symlink alias bypass allows host file reads outside sandboxRoot
Details

Summary

A sandbox path validation bypass in openclaw allows host file reads outside sandboxRoot via the media path fallback tmp flow when the fallback tmp root is a symlink alias.

Affected Packages / Versions

  • Package: npm openclaw
  • Affected versions: <= 2026.2.24
  • Latest published npm version at triage time (February 26, 2026): 2026.2.24
  • Patched version : 2026.2.25

Details

When /tmp/openclaw is unavailable or unsafe, resolvePreferredOpenClawTmpDir() in src/infra/tmp-openclaw-dir.ts fell back to os.tmpdir()/openclaw-<uid> without verifying that fallback path was a trusted non-symlink directory.

resolveSandboxedMediaSource() (src/agents/sandbox-paths.ts) allows absolute tmp media paths under the OpenClaw tmp root using lexical containment and alias checks. If the fallback tmp root is a symlink alias (for example to /), inputs like $TMPDIR/openclaw-<uid>/etc/passwd can pass validation and resolve to host files outside sandboxRoot.

Impact

This can break sandbox media path confinement and permit unauthorized host file reads (confidentiality impact).

Reproduction (high level)

  1. Force resolver fallback (make /tmp/openclaw unavailable/invalid).
  2. Make fallback root ($TMPDIR/openclaw-<uid>) a symlink alias to /.
  3. Submit media path under fallback root (for example $TMPDIR/openclaw-<uid>/etc/passwd).
  4. Observe accepted path and read outside sandboxRoot.

Fix Commit(s)

  • 496a76c03ba85e15ea715e5a583e498ae04d36e3

Release Process Note

Patched version is pre-set to release 2026.2.25; once npm publish for 2026.2.25 is complete, this advisory can be published without further metadata edits.

OpenClaw thanks @tdjackey for reporting.

Database specific 
{
    "cwe_ids":  [
        "CWE-22",
        "CWE-59"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-03T22:08:54Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}
References

Affected packages

npm / openclaw

Package

Name
openclaw
View open source insights on deps.dev
Purl
pkg:npm/openclaw

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2026.2.25

Database specific

last_known_affected_version_range 
"<= 2026.2.24"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xmv6-r34m-62p4/GHSA-xmv6-r34m-62p4.json"