What’s Vulnerable › Vulnerabilities

CVE-2026-27009: OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection

• Severity: medium (CVSS 5.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-20 · updated 2026-06-17
• Weakness: CWE-79

Description

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).

Affected products

• OpenClaw: before 2026.2.15 — fixed in 2026.2.15

How to fix

Upgrade to a fixed version: OpenClaw 2026.2.15. Check the vendor advisory for mitigations.

References

• 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

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