{"id":"CVE-2026-111932","aliases":["EUVD-2026-103299","GHSA-7cmx-x3cj-5mp3","GHSA-h58c-xccx-75m3","GO-2026-6267"],"status":"published","title":"Coder before 2.34.2 Stored HTML Injection via Appearance Settings","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00167,"percentile":0.06006,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-74","CWE-79"],"published":"2026-08-20T18:34:26Z","modified":"2026-11-04T23:10:00Z","fixes":[{"ecosystem":"Go","package":"github.com/coder/coder/v2","fixed_in":["2.34.2","2.33.8","2.32.7","2.29.17"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.34.0"},{"fixed":"2.34.2"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.33.0"},{"fixed":"2.33.8"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.30.0"},{"fixed":"2.32.7"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.29.17"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"2.34.0"},{"fixed":"2.34.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"2.33.0"},{"fixed":"2.33.8"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"2.30.0"},{"fixed":"2.32.7"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.29.17"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/coder/coder/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.29.17"},{"introduced":"2.30.0"},{"fixed":"2.32.7"},{"introduced":"2.33.0"},{"fixed":"2.33.8"},{"introduced":"2.34.0"},{"fixed":"2.34.2"}]}]}],"products":[{"vendor":"coder","product":"coder"}],"references":[{"url":"https://github.com/coder/coder/security/advisories/GHSA-h58c-xccx-75m3","tags":["vendor-advisory","advisory","web"]},{"url":"https://www.vulncheck.com/advisories/coder-before-2.34.2-stored-html-injection-via-appearance-settings","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111932","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7cmx-x3cj-5mp3"},{"url":"https://github.com/coder/coder/pull/25804","tags":["web","fix"]},{"url":"https://github.com/coder/coder/commit/ec19bc41d80568c0eb9f74b526e8cc8ffbe3be9a","tags":["web","fix"]},{"url":"https://github.com/coder/coder/releases/tag/v2.29.17","tags":["web"]},{"url":"https://github.com/coder/coder/releases/tag/v2.32.7","tags":["web"]},{"url":"https://github.com/coder/coder/releases/tag/v2.33.8","tags":["web"]},{"url":"https://github.com/coder/coder/releases/tag/v2.34.2","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h58c-xccx-75m3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111932.json","tags":["advisory"]},{"url":"https://github.com/coder/coder","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-111932","title":"Coder before 2.34.2 Stored HTML Injection via Appearance Settings","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","status":"published","published":"2026-10-17T18:46:42.757Z","modified":"2026-10-22T02:08:49.284Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":3.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:15.34316Z"}],"euvd":[{"id":"EUVD-2026-103299","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","status":"published","published":"2026-10-17T18:46:42Z","modified":"2026-10-22T02:08:49Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:59:35.88085Z"}],"ghsa":[{"id":"GHSA-7cmx-x3cj-5mp3","title":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2...","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","status":"published","published":"2026-10-17T21:31:20Z","modified":"2026-10-17T21:31:26Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":3.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:13:53.726362Z"},{"id":"GHSA-h58c-xccx-75m3","title":"Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings","description":"### Summary\n\nThe `ApplicationName` and `LogoURL` appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails.\n\n\u003e **Note:** Exploitation requires the `Owner` role which already holds full administrative control of the deployment so practical impact is limited.\n\n### Impact\n\nAn Owner-role user could store HTML markup in the `ApplicationName` or `LogoURL` appearance settings that later rendered in the dashboard and in SMTP notification emails which results in stored HTML injection against other users of the deployment. Exploitation requires the highly privileged `Owner` role.\n\n### Patches\n\nThe fix escapes the `ApplicationName` and `LogoURL` appearance values in HTML output before rendering.\n\nThe fix was backported to all supported release lines:\n\n| Release line | Patched version |\n|---|---|\n| 2.34 | [v2.34.2](https://github.com/coder/coder/releases/tag/v2.34.2) |\n| 2.33 | [v2.33.8](https://github.com/coder/coder/releases/tag/v2.33.8) |\n| 2.32 | [v2.32.7](https://github.com/coder/coder/releases/tag/v2.32.7) |\n| 2.29 (ESR) | [v2.29.17](https://github.com/coder/coder/releases/tag/v2.29.17) |\n\n### Workarounds\n\nRestrict the `Owner` role to trusted administrators.\n\n### References\n\n- Fix: #25804\n\n### Credits\n\nWe'd like to thank Anthropic's Security Team (ANT-2026-22453) for independently disclosing this issue!","status":"published","published":"2026-08-20T18:34:26Z","modified":"2026-08-20T18:34:32Z","cvss":[{"version":"3.1","score":3.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:41:04.755504Z"}],"nvd":[{"id":"CVE-2026-111932","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","status":"published","published":"2026-10-17T19:16:36.217Z","modified":"2026-11-04T23:10:00.223Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":3.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-05T01:45:11.88225Z"}],"osv":[{"id":"CVE-2026-111932","title":"Coder before 2.34.2 Stored HTML Injection via Appearance Settings","description":"Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent to other deployment users.","status":"published","published":"2026-10-17T18:46:42.757Z","modified":"2026-11-05T21:15:40.617920616Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-05T22:01:21.792402Z"},{"id":"GHSA-h58c-xccx-75m3","title":"Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings","description":"### Summary\n\nThe `ApplicationName` and `LogoURL` appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails.\n\n\u003e **Note:** Exploitation requires the `Owner` role which already holds full administrative control of the deployment so practical impact is limited.\n\n### Impact\n\nAn Owner-role user could store HTML markup in the `ApplicationName` or `LogoURL` appearance settings that later rendered in the dashboard and in SMTP notification emails which results in stored HTML injection against other users of the deployment. Exploitation requires the highly privileged `Owner` role.\n\n### Patches\n\nThe fix escapes the `ApplicationName` and `LogoURL` appearance values in HTML output before rendering.\n\nThe fix was backported to all supported release lines:\n\n| Release line | Patched version |\n|---|---|\n| 2.34 | [v2.34.2](https://github.com/coder/coder/releases/tag/v2.34.2) |\n| 2.33 | [v2.33.8](https://github.com/coder/coder/releases/tag/v2.33.8) |\n| 2.32 | [v2.32.7](https://github.com/coder/coder/releases/tag/v2.32.7) |\n| 2.29 (ESR) | [v2.29.17](https://github.com/coder/coder/releases/tag/v2.29.17) |\n\n### Workarounds\n\nRestrict the `Owner` role to trusted administrators.\n\n### References\n\n- Fix: #25804\n\n### Credits\n\nWe'd like to thank Anthropic's Security Team (ANT-2026-22453) for independently disclosing this issue!","status":"published","published":"2026-08-20T18:34:26Z","modified":"2026-10-18T10:55:43.815551258Z","cvss":[{"version":"3.1","score":3.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:46:48.546324Z"},{"id":"GO-2026-6267","title":"Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings in github.com/coder/coder","description":"Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings in github.com/coder/coder","status":"published","published":"2026-08-25T19:43:10Z","modified":"2026-10-18T10:55:43.815551258Z","updated_at":"2026-11-02T15:47:03.11707Z"}]}}