Description
OpenClaw affected by cross-site request forgery (CSRF) through loopback browser mutation endpoints (CVE-2026-26317)
Details
OpenClaw is a personal AI assistant. Prior to 2026.2.14, browser-facing localhost mutation routes accepted cross-origin browser requests without explicit Origin/Referer validation. Loopback binding reduces remote exposure but does not prevent browser-initiated requests from malicious origins. A malicious website can trigger unauthorized state changes against a victim’s local OpenClaw browser control plane (for example opening tabs, starting/stopping the browser, mutating storage/cookies) if the browser control service is reachable on loopback in the victim’s browser context. Starting in version 2026.2.14, mutating HTTP methods (POST/PUT/PATCH/DELETE) are rejected when the request indicates a non-loopback Origin/Referer (or Sec-Fetch-Site: cross-site). Other mitigations include enabling browser control auth (token/password) and avoid running with auth disabled.
References
Affected or Relevant Artifacts
- Developer: openclaw
- Deployer: openclaw
- Artifact Details:
| Type | Name |
|---|
| System | openclaw |
| System | clawdbot |
Impact
AVID Taxonomy Categorization
- Risk domains: Security
- SEP subcategories: S0100: Software Vulnerability
- Lifecycle stages: L06: Deployment
CVSS
| Version | 3.1 |
| Vector String | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L |
| Base Score | 7.1 |
| Base Severity | 🔴 High |
| Attack Vector | NETWORK |
| Attack Complexity | 🟢 Low |
| Privileges Required | NONE |
| User Interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | 🔴 High |
| Availability Impact | 🟢 Low |
CWE
| ID | Description |
|---|
| CWE-352 | CWE-352: Cross-Site Request Forgery (CSRF) |
- Report Type: Advisory
- Credits:
- Date Reported: 2026-02-19
- Version: 0.3.2
- AVID Entry