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CVE-2026-43534

MEDIUM

OpenClaw: Agent hook events could enqueue trusted system events from unsanitized external input

Published April 17, 2026Updated May 8, 2026Source: osv

Summary

## 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.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update openclaw to 2026.4.10 or later
npm install openclaw@2026.4.10

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

PackageEcosystemAffectedFixed In
openclaw
npm
All versions2026.4.10

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-269
    Improper Privilege ManagementMITRE
  • CWE-345
    Insufficient Verification of Data AuthenticityMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.1 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2026-43534?
OpenClaw: Agent hook events could enqueue trusted system events from unsanitized external input This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.1/10).
How do I check if my project is affected by CVE-2026-43534?
CVE-2026-43534 affects openclaw. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-43534 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.1

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-7g8c-cfr3-vqqr

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