CVE-2026-43534: OpenClaw Agent Hook Events Could Enqueue Vulnerability

MODERATE
Advisory Identifier: GHSA-7g8c-cfr3-vqqr
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CVSS 9.1
CWE-269 CWE-345
Published
Advisory Summary

CVE-2026-43534 is a MODERATE (CVSS 9.1) agent hook events could enqueue vulnerability (CWE-269: Improper Privilege Management) affecting OpenClaw libraries in the npm ecosystem. The issue involves agent hook events could enqueue trusted system events from unsanitized external input. Remediation is available by upgrading affected packages to version 2026.4.10.

CVE-2026-43534 at a Glance

CVE Identifier CVE-2026-43534
GHSA Identifier GHSA-7g8c-cfr3-vqqr
Severity MODERATE
CVSS v3.1 Base Score 9.1
CWE Classification CWE-269: Improper Privilege Management
Affected Product OpenClaw
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.1

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

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

How to Fix CVE-2026-43534

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: 2026.4.10 
npm install openclaw@2026.4.10
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-2026-43534, 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 2026.4.10), 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-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. 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 Agent hook events could enqueue trusted system events from unsanitized external input. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `< 2026.4.10` - Patched versions: `>= 2026.4.10` ## Impact Agent hook dispatch could turn externally supplied hook metadata into trusted system events, allowing untrusted input to enter the agent as higher-trust context. ## Technical Details The fix sanitizes hook names and marks agent hook system events as untrusted before enqueueing them. ## Fix The issue was fixed in #64372. The first stable tag containing the fix is `v2026.4.10`, and `openclaw@2026.4.14` includes the fix. ## Fix Commit(s) - `e3a845bde5b54f4f1e742d0a51ba9860f9619b29` - PR: #64372 ## Release Process Note Users should upgrade to `openclaw` 2026.4.10 or newer. The latest npm release, `2026.4.14`, already includes the fix. ## Credits Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

CVE-2026-43534 Affected OpenClaw Versions

1 component(s)
Fixed Versions:
2026.4.10
Product / Package Ecosystem Affected Versions Fixed Version
openclaw
npm/openclaw
npm
< 2026.4.10
2026.4.10

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openclaw/openclaw/security/advisories/GHSA-7g8c-cfr3-vqqr
NVD — CVE-2026-43534 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43534
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw/pull/64372
Security Fix Commit FIX COMMIT
https://github.com/openclaw/openclaw/commit/e3a845bde5b54f4f1e742d0a51ba9860f9619b29
OpenClaw Source Repository REPOSITORY
https://github.com/openclaw/openclaw
www.vulncheck.com/advisories/openclaw... WEB
https://www.vulncheck.com/advisories/openclaw-unsanitized-external-input-in-agent-hook-events

Frequently Asked Questions

What is CVE-2026-43534?
CVE-2026-43534 is a security vulnerability in OpenClaw involving Agent hook events could enqueue trusted system events from unsanitized external input under CWE-269: Improper Privilege Management.
Which OpenClaw versions are affected?
Affected versions include releases prior to 2026.4.10 across affected packages: openclaw.
What version fixes CVE-2026-43534?
Upgrading to 2026.4.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openclaw affected?
Yes, openclaw is affected in releases prior to 2026.4.10. Upgrade your dependency to 2026.4.10 or later.
What is the CVSS score of CVE-2026-43534?
CVE-2026-43534 has a CVSS v3.1 base score of 9.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-43534?
CVE-2026-43534 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check npm dependencies for CVE-2026-43534?
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-7g8c-cfr3-vqqr",
  "modified" : "2026-05-08T01:32:34Z",
  "published" : "2026-04-17T21:55:20Z",
  "aliases" : [ "CVE-2026-43534" ],
  "summary" : "OpenClaw: Agent hook events could enqueue trusted system events from unsanitized external input",
  "details" : "## Summary\n\nAgent hook events could enqueue trusted system events from unsanitized external input.\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Ecosystem: npm\n- Affected versions: `< 2026.4.10`\n- Patched versions: `>= 2026.4.10`\n\n## Impact\n\nAgent hook dispatch could turn externally supplied hook metadata into trusted system events, allowing untrusted input to enter the agent as higher-trust context.\n\n## Technical Details\n\nThe fix sanitizes hook names and marks agent hook system events as untrusted before enqueueing them.\n\n## Fix\n\nThe issue was fixed in #64372. The first stable tag containing the fix is `v2026.4.10`, and `openclaw@2026.4.14` includes the fix.\n\n## Fix Commit(s)\n\n- `e3a845bde5b54f4f1e742d0a51ba9860f9619b29`\n- PR: #64372\n\n## Release Process Note\n\nUsers should upgrade to `openclaw` 2026.4.10 or newer. The latest npm release, `2026.4.14`, already includes the fix.\n\n## Credits\n\nThanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-7g8c-cfr3-vqqr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-43534"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/pull/64372"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/e3a845bde5b54f4f1e742d0a51ba9860f9619b29"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/openclaw-unsanitized-external-input-in-agent-hook-events"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269", "CWE-345" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-17T21:55:20Z",
    "nvd_published_at" : "2026-05-05T12:16:19Z"
  }
}