{"id":"CVE-2026-45627","revision":"911b7249b5e9461ca2c6f43169e31b11","records":[{"revision":"911b7249b5e9461ca2c6f43169e31b11","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-45627","aliases":[],"title":"Arcane: Unauthenticated reflected XSS via SVG color parameter in /api/app-images/logo enables admin account takeover","description":"Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.0, the unauthenticated GET /api/app-images/logo endpoint reflects a user-supplied color query parameter into the body of an SVG document via strings.ReplaceAll with no escaping. The substitution lands inside a <style> element of the embedded logo.svg, allowing an attacker to close the style block and inject executable <script> content. Because the response is served as image/svg+xml and Arcane sets no Content-Security-Policy or X-Content-Type-Options headers, navigating a logged-in admin victim to a crafted URL executes attacker-controlled JavaScript in Arcane's origin and rides the victim's HttpOnly JWT cookie to fully compromise the admin account. This vulnerability is fixed in 1.19.0.","state":0,"publishedAt":"2026-05-29T17:08:53.797+00:00","modifiedAt":"2026-05-29T17:31:14.391+00:00","affected":[{"ecosystem":"Vendor product","name":"arcane","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getarcaneapp\",\n                    \"product\": \"arcane\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.19.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","score":8.2,"severity":"HIGH"}],"references":["https://github.com/getarcaneapp/arcane/security/advisories/GHSA-q2pj-8v84-9mh5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45627","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-45627","identifiers":["CVE-2026-45627"]},"retained":false,"historicalAffected":[]}],"coverage":[]}