{"id":"CVE-2026-27009","aliases":["EUVD-2026-8408","GHSA-37gc-85xm-2ww6"],"status":"published","title":"OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection","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 `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` 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).","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00264,"percentile":0.18457,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-02-18T22:44:33Z","modified":"2026-11-04T02:51:07Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.15"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.15"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.15"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-37gc-85xm-2ww6","tags":["x_refsource_CONFIRM","Exploit","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/3b4096e02e7e335f99f5986ec1bd566e90b14a7e","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/adc818db4a4b3b8d663e7674ef20436947514e1b","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.15","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27009","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-37gc-85xm-2ww6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27009.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-27009","title":"OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection","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 `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` 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).","status":"published","published":"2026-02-19T23:25:41.111Z","modified":"2026-02-20T15:36:57.938Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:49.199185Z"}],"euvd":[{"id":"EUVD-2026-8408","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 `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` 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).","status":"published","published":"2026-02-19T23:25:41Z","modified":"2026-02-20T15:36:57Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T19:48:37.056368Z"}],"ghsa":[{"id":"GHSA-37gc-85xm-2ww6","title":"OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection","description":"## Summary\nStored XSS in the OpenClaw Control UI when rendering assistant identity (name/avatar) into an inline `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` could break out of the script tag and execute attacker-controlled JavaScript in the Control UI origin.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c= 2026.2.14`\n- Fixed in: `\u003e= 2026.2.15` (next release; fix is already merged on `main`)\n\n## Details\nThe gateway Control UI HTML response previously injected `assistantName` and `assistantAvatar` directly into an inline `\u003cscript\u003e` block using `JSON.stringify(...)`. `JSON.stringify` does not prevent `\u003c/script\u003e` from terminating the script element, enabling stored XSS if an operator/admin sets the assistant identity to a malicious string.\n\nOpenClaw’s Control UI is intended for local use only (see `SECURITY.md`); this advisory’s CVSS reflects a loopback-only/local-access deployment assumption.\n\n## Impact\nAn 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.\n\n## Fix\n- Removed inline script injection and serve bootstrap config from a JSON endpoint.\n- Added a restrictive Content Security Policy for the Control UI (`script-src 'self'`, no inline scripts).\n\n## Fix Commit(s)\n- `adc818db4a4b3b8d663e7674ef20436947514e1b`\n- `3b4096e02e7e335f99f5986ec1bd566e90b14a7e`\n\n## Release Process Note\nThis 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.\n\nThanks @Adam55A-code for reporting.","status":"published","published":"2026-02-18T22:44:33Z","modified":"2026-02-20T16:47:41Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:39:26.881079Z"}],"nvd":[{"id":"CVE-2026-27009","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 `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` 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).","status":"published","published":"2026-02-20T00:16:17.62Z","modified":"2026-06-17T10:26:31.89Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:06.63895Z"}],"osv":[{"id":"CVE-2026-27009","title":"OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection","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 `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` 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).","status":"published","published":"2026-02-19T23:25:41.111Z","modified":"2026-11-04T02:51:07.025953931Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-04T03:25:28.514393Z"},{"id":"GHSA-37gc-85xm-2ww6","title":"OpenClaw affected by Stored XSS in Control UI via unsanitized assistant name/avatar in inline script injection","description":"## Summary\nStored XSS in the OpenClaw Control UI when rendering assistant identity (name/avatar) into an inline `\u003cscript\u003e` tag without script-context-safe escaping. A crafted value containing `\u003c/script\u003e` could break out of the script tag and execute attacker-controlled JavaScript in the Control UI origin.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c= 2026.2.14`\n- Fixed in: `\u003e= 2026.2.15` (next release; fix is already merged on `main`)\n\n## Details\nThe gateway Control UI HTML response previously injected `assistantName` and `assistantAvatar` directly into an inline `\u003cscript\u003e` block using `JSON.stringify(...)`. `JSON.stringify` does not prevent `\u003c/script\u003e` from terminating the script element, enabling stored XSS if an operator/admin sets the assistant identity to a malicious string.\n\nOpenClaw’s Control UI is intended for local use only (see `SECURITY.md`); this advisory’s CVSS reflects a loopback-only/local-access deployment assumption.\n\n## Impact\nAn 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.\n\n## Fix\n- Removed inline script injection and serve bootstrap config from a JSON endpoint.\n- Added a restrictive Content Security Policy for the Control UI (`script-src 'self'`, no inline scripts).\n\n## Fix Commit(s)\n- `adc818db4a4b3b8d663e7674ef20436947514e1b`\n- `3b4096e02e7e335f99f5986ec1bd566e90b14a7e`\n\n## Release Process Note\nThis 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.\n\nThanks @Adam55A-code for reporting.","status":"published","published":"2026-02-18T22:44:33Z","modified":"2026-02-20T17:02:59.385901Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:35.406455Z"}]}}