🛡️ GHSA-xmv6-r34m-62p4 — openclaw

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-22 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenClaw: Sandbox media fallback tmp symlink alias bypass allows host file reads outside sandboxRoot

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity none, availability none.

Weakness class

GHSA-xmv6-r34m-62p4 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

GHSA-xmv6-r34m-62p4 is recorded against 1 package.

  • openclaw

Timeline and source

Published on 3 March 2026 and last revised on 4 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
github.com (Package)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector 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
CWE CWE-22
Public Exploit ✅ No
Source OSV
Published 2026-03-03
Updated 2026-08-20
Modified 2026-03-04
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw — —

Similar Threats

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