CVE-2026-53863
Received Received - Intake
Input Validation Flaw in OpenClaw Tool Group Policy

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: VulnCheck

Description
OpenClaw before 2026.4.25 contains an input validation vulnerability in tool group policy callers that accept unvalidated group IDs. Attackers who can supply a group ID to the policy resolver could trigger incorrect group-policy decisions for tool invocations, potentially bypassing intended access controls.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-53863
EUVD
EUVD-2026-37165
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw to 2026.4.25 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

CVE-2026-53863 is an input validation vulnerability in OpenClaw versions before 2026.4.25. The issue occurs in tool group policy callers that accept unvalidated group IDs. Attackers who can supply a group ID to the policy resolver may cause incorrect group-policy decisions for tool invocations, potentially bypassing intended access controls.

This flaw is classified as an authorization bypass through user-controlled key (CWE-639), meaning that by controlling the group ID input, an attacker can manipulate authorization decisions.

Impact Analysis

This vulnerability can allow attackers to bypass intended access controls by manipulating group-policy decisions for tool invocations. This means unauthorized users might gain access to tools or functions they should not have permission to use.

The impact primarily affects the integrity of the system, as unauthorized actions could be performed. Confidentiality impact is low and there is no availability impact.

The exploit requires network access, low complexity, and low privileges, but no user interaction, making it moderately easy to exploit if the attacker can supply group IDs.

Mitigation Strategies

To mitigate the vulnerability in OpenClaw before version 2026.4.25, you should take the following immediate steps:

  • Avoid exposing group-policy controlled tools to untrusted senders.
  • Keep allowlists narrow to limit which inputs can reach the affected policy resolver.
  • Disable the affected feature if it is not necessary in your environment.
  • Upgrade OpenClaw to version 2026.4.25 or later, where the vulnerability is patched.
Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-53863. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart