{"cve":"CVE-2026-21885","nvd":{"published":"2026-01-08T14:15:57.257","modified":"2026-06-17T10:19:05.410","status":"Analyzed","description":"Miniflux 2 is an open source feed reader. Prior to version 2.2.16, Miniflux's media proxy endpoint (`GET /proxy/{encodedDigest}/{encodedURL}`) can be abused to perform Server-Side Request Forgery (SSRF). An authenticated user can cause Miniflux to generate a signed proxy URL for attacker-chosen media URLs embedded in feed entry content, including internal addresses (e.g., localhost, private RFC1918 ranges, or link-local metadata endpoints). Requesting the resulting `/proxy/...` URL makes Miniflux fetch and return the internal response. Version 2.2.16 fixes the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-918"],"references":["https://github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wp","https://github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wp"],"products":["miniflux_project:miniflux"],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2026-21885","score":0.003,"percentile":0.22762,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xwh2-742g-w3wp","url":"https://osv.dev/vulnerability/GHSA-xwh2-742g-w3wp","summary":"Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources","modified":"2026-02-03T03:15:42.309795Z","packages":[{"ecosystem":"Go","name":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","ranges":["<2.2.16"],"fixed":["2.2.16"]}]},{"id":"GO-2026-4287","url":"https://osv.dev/vulnerability/GO-2026-4287","summary":"Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources in miniflux.app","modified":"2026-03-03T04:57:51.539372Z","packages":[{"ecosystem":"Go","name":"miniflux.app","purl":"pkg:golang/miniflux.app","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"miniflux.app/v2","purl":"pkg:golang/miniflux.app/v2","ranges":["<2.2.16"],"fixed":["2.2.16"]}]}],"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."]}