Описание
OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection
Summary
Stored XSS 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.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.2.14 - Fixed in:
>= 2026.2.15(next release; fix is already merged onmain)
Details
The gateway Control UI HTML response previously injected assistantName and assistantAvatar directly into an inline <script> block using JSON.stringify(...). JSON.stringify does not prevent </script> from terminating the script element, enabling stored XSS if an operator/admin sets the assistant identity to a malicious string.
OpenClaw’s Control UI is intended for local use only (see SECURITY.md); this advisory’s CVSS reflects a loopback-only/local-access deployment assumption.
Impact
An attacker with the ability to set assistant identity values (config or agent identity) could cause JavaScript execution for Control UI visitors, enabling token/session theft and privileged actions in the UI.
Fix
- Removed inline script injection and serve bootstrap config from a JSON endpoint.
- Added a restrictive Content Security Policy for the Control UI (
script-src 'self', no inline scripts).
Fix Commit(s)
adc818db4a4b3b8d663e7674ef20436947514e1b3b4096e02e7e335f99f5986ec1bd566e90b14a7e
Release Process Note
This advisory pre-sets the patched version to the planned next release (2026.2.15). Once that version is published to npm, this advisory can be published without further edits.
Thanks @Adam55A-code for reporting.
Ссылки
- https://github.com/openclaw/openclaw/security/advisories/GHSA-37gc-85xm-2ww6
- https://nvd.nist.gov/vuln/detail/CVE-2026-27009
- https://github.com/openclaw/openclaw/commit/3b4096e02e7e335f99f5986ec1bd566e90b14a7e
- https://github.com/openclaw/openclaw/commit/adc818db4a4b3b8d663e7674ef20436947514e1b
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.15
Пакеты
openclaw
< 2026.2.15
2026.2.15
Связанные уязвимости
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).