CVE-2026-44113: OpenClaw OpenShell FS Bridge Reads Pin Vulnerability

MODERATE
Advisory Identifier: GHSA-5h3g-6xhh-rg6p
Share
CVSS 5.3
CWE-367
Published
Advisory Summary

CVE-2026-44113 is a MODERATE (CVSS 5.3) openshell fs bridge reads pin vulnerability (CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition) affecting OpenClaw libraries in the npm ecosystem. The issue involves openshell fs bridge reads pin and verify the opened file before returning bytes. Remediation is available by upgrading affected packages to version 2026.4.22.

CVE-2026-44113 at a Glance

CVE Identifier CVE-2026-44113
GHSA Identifier GHSA-5h3g-6xhh-rg6p
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-44113

To remediate this vulnerability, upgrade all affected OpenClaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openclaw fixed: 2026.4.22 
npm install openclaw@2026.4.22
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls openclaw

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-44113, inspect your project dependencies using npm:

npm ls openclaw

Analyze the terminal output to locate any version of OpenClaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.4.22), your application is affected.

Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition, where the product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. In OpenClaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary OpenShell FS bridge reads pin and verify the opened file before returning bytes ## Affected Packages / Versions - Package: openclaw (npm) - Affected versions: <= 2026.4.21 - Fixed version: 2026.4.22 ## Impact A time-of-check/time-of-use race around OpenShell sandbox filesystem reads could let a symlink swap cause bytes outside the intended mount root to be read. ## Fix OpenShell reads now open the file with no-follow semantics where available, validate the pinned file descriptor against the canonical mount root, reject unsafe hardlink/symlink cases, and use a strict fallback ancestor walk on platforms without fd-path readback. ## Fix Commit(s) - 95119017c847c737bd113f0bff728c4666d79c45 ## Verification - The fix commit is contained in the public v2026.4.22 tag. - openclaw@2026.4.22 is published on npm and the compiled package contains the fix. - Focused regression coverage for this path passed before publication. Thanks @VladimirEliTokarev for reporting.

CVE-2026-44113 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.4.22
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.22
2026.4.22

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3g-6xhh-rg6p
NVD — CVE-2026-44113 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44113
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/95119017c847c737bd113f0bff728c4666d79c45
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-time-of-check-time-of-use-race-condition-in-openshell-fs-bridge

Frequently Asked Questions

What is CVE-2026-44113?
CVE-2026-44113 is a security vulnerability in OpenClaw involving OpenShell FS bridge reads pin and verify the opened file before returning bytes under CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.4.22 across affected packages: openclaw.
What version fixes CVE-2026-44113?
Upgrading to 2026.4.22 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.22. Upgrade your dependency to 2026.4.22 or later.
What is the CVSS score of CVE-2026-44113?
CVE-2026-44113 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-44113?
CVE-2026-44113 is classified under CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition (The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.).
How can I check npm dependencies for CVE-2026-44113?
Run the dependency tree command: 'npm ls openclaw'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5h3g-6xhh-rg6p",
  "modified" : "2026-05-12T13:36:34Z",
  "published" : "2026-05-04T21:07:36Z",
  "aliases" : [ "CVE-2026-44113" ],
  "summary" : "OpenClaw: OpenShell FS bridge reads pin and verify the opened file before returning bytes",
  "details" : "## Summary\nOpenShell FS bridge reads pin and verify the opened file before returning bytes \n\n## Affected Packages / Versions\n- Package: openclaw (npm)\n- Affected versions: <= 2026.4.21\n- Fixed version: 2026.4.22\n\n## Impact\nA time-of-check/time-of-use race around OpenShell sandbox filesystem reads could let a symlink swap cause bytes outside the intended mount root to be read.\n\n## Fix\nOpenShell reads now open the file with no-follow semantics where available, validate the pinned file descriptor against the canonical mount root, reject unsafe hardlink/symlink cases, and use a strict fallback ancestor walk on platforms without fd-path readback.\n\n## Fix Commit(s)\n- 95119017c847c737bd113f0bff728c4666d79c45\n\n## Verification\n- The fix commit is contained in the public v2026.4.22 tag.\n- openclaw@2026.4.22 is published on npm and the compiled package contains the fix.\n- Focused regression coverage for this path passed before publication.\n\nThanks @VladimirEliTokarev for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.22"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2026.4.21"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-5h3g-6xhh-rg6p"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44113"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/95119017c847c737bd113f0bff728c4666d79c45"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-time-of-check-time-of-use-race-condition-in-openshell-fs-bridge"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-367" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-04T21:07:36Z",
    "nvd_published_at" : null
  }
}