Advisory details:
github_osv / GHSA-37gc-85xm-2ww6
| Advisory ID | github_osv/GHSA-37gc-85xm-2ww6 |
| Aliases |
CVE-2026-27009
|
| Summary | 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 on `main`) ## 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) - `adc818db4a4b3b8d663e7674ef20436947514e1b` - `3b4096e02e7e335f99f5986ec1bd566e90b14a7e` ## 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.2 |
| Risk | 2.6 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 5.8 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-37gc-85xm-2ww6/GHSA-37gc-85xm-2ww6.json |
| generic_textual | MODERATE |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-20T15:29:24Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/27xxx/CVE-2026-27009.json
Source Advisory: vulnrichment/CVE-2026-27009
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]