Vulnerability Report

CVE-2026-27009

Title: Stored XSS in OpenClaw Control UI rendering assistant identity

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-27009.

CWE Category CWE-79

Published Date Feb 20, 2026

Modified Date Feb 20, 2026

Exploit Status Not Found

Score 5.8 CVSS v3.1

Exploit Probability (EPSS)

0.23%

Vulnerability Summary

CVE-2026-27009: OpenClaw is a personal AI assistant. Prior to version 2026.2.15, a atored XSS issue in the OpenClaw Control UI when rendering assistant identity (name/avatar) into an inline `<script>` tag without script-context-safe escaping. A crafted value containing `</script>` could break out of the script tag and execute attacker-controlled JavaScript in the Control UI origin. Version 2026.2.15 removed inline script injection and serve bootstrap config from a JSON endpoint and added a restrictive Content Security Policy for the Control UI (`script-src 'self'`, no inline scripts).

Impacted Vendors

openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/3b4096e02e7e335f99f5986ec1bd566e90b14a7e https://github.com/openclaw/openclaw/commit/adc818db4a4b3b8d663e7674ef20436947514e1b https://github.com/openclaw/openclaw/releases/tag/v2026.2.15 https://github.com/openclaw/openclaw/security/advisories/GHSA-37gc-85xm-2ww6

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-27009 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.