{"id":"CVE-2026-55185","revision":"0a67bf04c1d3418bad09ae39ddf9980f","records":[{"revision":"0a67bf04c1d3418bad09ae39ddf9980f","observedAt":"2026-10-25T13:17:34.255+00:00","statement":{"source":"nvd","id":"CVE-2026-55185","aliases":[],"title":"Miniflux 2 is an open source feed reader. Prior to 2.3.1, IsRelativePath in internal/urllib/url.go accepts redirect targets containing backslashes because Go URL parsing treats them as path characters. Browser backslash normalization conver…","description":"Miniflux 2 is an open source feed reader. Prior to 2.3.1, IsRelativePath in internal/urllib/url.go accepts redirect targets containing backslashes because Go URL parsing treats them as path characters. Browser backslash normalization converts them to forward slashes. An unauthenticated attacker can provide such a redirect_url value to the login flow, bypass the relative-path and host checks, and redirect a victim to an attacker-controlled external site. This issue is fixed in version 2.3.1.","state":0,"publishedAt":"2026-08-21T21:17:00.563+00:00","modifiedAt":"2026-10-12T16:10:00.22+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/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","score":5.1,"severity":"MEDIUM"}],"references":["https://github.com/miniflux/v2/commit/c896bafdaa19c3f280b02b1059f84706495f1949","https://github.com/miniflux/v2/pull/4362","https://github.com/miniflux/v2/releases/tag/2.3.1","https://github.com/miniflux/v2/security/advisories/GHSA-m999-j542-5w3r"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55185","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-601"],"productCriteria":[],"sourceDates":{"published":"2026-08-21T21:17:00.563","lastModified":"2026-10-12T16:10:00.220"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55185","identifiers":["CVE-2026-55185"]},"retained":false,"historicalAffected":[]}],"coverage":[]}