{"answers":{"affected":"4 open source packages ship an affected version, including miniflux.app/v2 and miniflux.app.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55185 exists.","fix":"Upgrade miniflux.app/v2 to 2.3.1 or later.","what":"CVE-2026-55185 is a medium-severity vulnerability in miniflux v2, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-55185 and fix it if it is affected.\n\nWhat it is: CVE-2026-55185 is a medium-severity vulnerability in miniflux v2, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55185 exists.\n\nAffected packages and fixed versions:\n- miniflux.app/v2 (Go): affected all versions; fixed in 2.3.1\n- miniflux.app/v2 (Go): affected all versions; fixed in 2.3.1\n- miniflux.app/v2 (Go): affected all versions; fixed in 2.3.1\n- miniflux.app (Go): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-55185/ (Markdown: https://insights.sbomify.com/CVE-2026-55185/index.md)","id":"CVE-2026-55185","markdown":"https://insights.sbomify.com/CVE-2026-55185/index.md","name":"CVE-2026-55185","record":{"aliases":["DEBIAN-CVE-2026-55185","GHSA-m999-j542-5w3r","GO-2026-5500","UBUNTU-CVE-2026-55185"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Miniflux feed reader","requires_auth":"none","summary":"An attacker can bypass redirect checks in Miniflux 2 to redirect victims to malicious external sites via crafted login URLs.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Miniflux 2: Open Redirect Bypass","id":"CVE-2026-55185","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"Mailpit: Incomplete SSRF protection in Link Check API via IPv6 transition mechanisms (follow-up to CVE-2026-27808)","id":"CVE-2026-55187"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"miniflux.app","purl":"pkg:golang/miniflux.app","source":"GO-2026-5500"},{"ecosystem":"Go","fixed":["2.3.1"],"introduced":["0"],"last_affected":[],"package":"miniflux.app/v2","purl":null,"source":"GHSA-m999-j542-5w3r"},{"ecosystem":"Go","fixed":["2.3.1"],"introduced":["0"],"last_affected":[],"package":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","source":"GHSA-m999-j542-5w3r"},{"ecosystem":"Go","fixed":["2.3.1"],"introduced":["0"],"last_affected":[],"package":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","source":"GO-2026-5500"}],"prev":{"headline":"EspoCRM: Stored XSS in wysiwyg template fields if CSP is disabled","id":"CVE-2026-55184"},"products":["v2"],"published":"2026-08-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-24","vendors":["miniflux"]},"summary":"An attacker can bypass redirect checks in Miniflux 2 to redirect victims to malicious external sites via crafted login URLs.","url":"https://insights.sbomify.com/CVE-2026-55185/"}