CVE-2026-27009

Name: CVE-2026-27009
Creator: NVD / NIST
Published: 2026-02-20T00:16:17.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.8/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2026-27009 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

5.8/10

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

EPSS Probability

0.23%

13.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.2.15

References

https://github.com/openclaw/openclaw/commit/3b4096e02e7e335f99f5986ec1bd566e90b14a7ePatch
https://github.com/openclaw/openclaw/commit/adc818db4a4b3b8d663e7674ef20436947514e1bPatch
https://github.com/openclaw/openclaw/releases/tag/v2026.2.15Product, Release Notes
https://github.com/openclaw/openclaw/security/advisories/GHSA-37gc-85xm-2ww6Exploit, Patch, Vendor Advisory

Timeline

Published: Feb 20, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27009?

How severe is CVE-2026-27009?

CVE-2026-27009 has a CVSS score of 5.8/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27009?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27009?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST