CVE-2026-27009 OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection
Attackers can execute arbitrary JavaScript in the OpenClaw Control UI via unsanitized assistant names, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-27009?
CVE-2026-27009 is a medium-severity cross-site scripting vulnerability in Openclaw Openclaw, published on 19 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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).
Weakness: CWE-79
Which versions are affected by CVE-2026-27009?
2 open source packages ship an affected version, including openclaw. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openclaw npm | All versions | 2026.2.15 |
openclaw npm | All versions | 2026.2.15 |
Products include Openclaw Openclaw.
How do I fix CVE-2026-27009?
Upgrade openclaw to 2026.2.15 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-27009 being exploited?
There is no known exploitation of CVE-2026-27009 in the wild and no public exploit code.
Other vulnerabilities in Openclaw Openclaw
- CVE-2026-28363 Security feature bypass in OpenClaw
- CVE-2026-30741 Code injection in n/a
- CVE-2026-33579 OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
- CVE-2026-32922 OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate
- CVE-2026-32978 OpenClaw < 2026.3.11 - Approval Bypass via Unrecognized Script Runners
Sources
Also known as GHSA-37gc-85xm-2ww6.