{"cve":"CVE-2026-45627","nvd":{"published":"2026-05-29T18:17:10.647","modified":"2026-10-26T13:10:00.140","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":["CWE-79"],"references":["https://github.com/getarcaneapp/arcane/security/advisories/GHSA-q2pj-8v84-9mh5"],"products":[],"source":"nvd","synced_at":"2026-10-26T13:39:24.642594360+00:00"},"epss":{"cve":"CVE-2026-45627","score":0.00185,"percentile":0.07972,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-q2pj-8v84-9mh5","url":"https://osv.dev/vulnerability/GHSA-q2pj-8v84-9mh5","summary":"Arcane Backend: Unauthenticated reflected XSS via SVG color parameter enables admin account takeover","modified":"2026-06-25T23:11:34.823970134Z","packages":[{"ecosystem":"Go","name":"github.com/getarcaneapp/arcane/backend","purl":"pkg:golang/github.com/getarcaneapp/arcane/backend","ranges":["<1.19.0"],"fixed":["1.19.0"]}]},{"id":"GO-2026-5561","url":"https://osv.dev/vulnerability/GO-2026-5561","summary":"Arcane Backend: Unauthenticated reflected XSS via SVG color parameter enables admin account takeover in github.com/getarcaneapp/arcane/backend","modified":"2026-06-25T23:01:31.016868311Z","packages":[{"ecosystem":"Go","name":"github.com/getarcaneapp/arcane/backend","purl":"pkg:golang/github.com/getarcaneapp/arcane/backend","ranges":["<1.19.0"],"fixed":["1.19.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}