CVE-2026-41913: OpenClaw Concurrent Async Auth Attempts Can Vulnerability

LOW
Advisory Identifier: GHSA-25wv-8phj-8p7r
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CVSS 3.7
CWE-362 CWE-400
Published
Advisory Summary

CVE-2026-41913 is a LOW (CVSS 3.7) concurrent async auth attempts can vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting OpenClaw libraries in the npm ecosystem. The issue involves concurrent async auth attempts can bypass the intended shared-secret rate-limit budget on tailscale-capable paths. Remediation is available by upgrading affected packages to version 2026.4.4.

CVE-2026-41913 at a Glance

CVE Identifier CVE-2026-41913
GHSA Identifier GHSA-25wv-8phj-8p7r
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix CVE-2026-41913

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: 2026.4.4 
npm install openclaw@2026.4.4
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-2026-41913, 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 2026.4.4), 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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

## Impact Concurrent async auth attempts can bypass the intended shared-secret rate-limit budget on Tailscale-capable paths. Concurrent asynchronous shared-secret auth attempts could race the per-key rate-limit budget. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `<=2026.4.2` - Patched versions: `2026.4.4` ## Fix The issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`. ## Verification The fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary. ## Credits Thanks @Telecaster2147 for reporting.

CVE-2026-41913 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.4.4
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.4
2026.4.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-25wv-8phj-8p7r
NVD — CVE-2026-41913 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41913
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-rate-limit-bypass-via-concurrent-async-authentication-attempts

Frequently Asked Questions

What is CVE-2026-41913?
CVE-2026-41913 is a security vulnerability in OpenClaw involving Concurrent async auth attempts can bypass the intended shared-secret rate-limit budget on Tailscale-capable paths under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.4.4 across affected packages: openclaw.
What version fixes CVE-2026-41913?
Upgrading to 2026.4.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.4. Upgrade your dependency to 2026.4.4 or later.
What is the CVSS score of CVE-2026-41913?
CVE-2026-41913 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-41913?
CVE-2026-41913 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check npm dependencies for CVE-2026-41913?
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-25wv-8phj-8p7r",
  "modified" : "2026-05-06T02:41:14Z",
  "published" : "2026-04-09T17:35:57Z",
  "aliases" : [ "CVE-2026-41913" ],
  "summary" : "OpenClaw: Concurrent async auth attempts can bypass the intended shared-secret rate-limit budget on Tailscale-capable paths",
  "details" : "## Impact\n\nConcurrent async auth attempts can bypass the intended shared-secret rate-limit budget on Tailscale-capable paths.\n\nConcurrent asynchronous shared-secret auth attempts could race the per-key rate-limit budget.\n\nOpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `<=2026.4.2`\n- Patched versions: `2026.4.4`\n\n## Fix\n\nThe issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`.\n\n## Verification\n\nThe fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary.\n\n## Credits\n\nThanks @Telecaster2147 for reporting.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-25wv-8phj-8p7r"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-41913"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-rate-limit-bypass-via-concurrent-async-authentication-attempts"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362", "CWE-400" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-09T17:35:57Z",
    "nvd_published_at" : "2026-04-28T19:37:45Z"
  }
}