{"id":"DEBIAN-CVE-2026-21885","details":"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.","modified":"2026-08-27T23:05:55.453601327Z","published":"2026-01-08T14:15:57.257Z","upstream":["CVE-2026-21885"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-21885"}],"affected":[{"package":{"name":"miniflux","ecosystem":"Debian:13","purl":"pkg:deb/debian/miniflux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.10-1","2.2.11-1","2.2.12-1","2.2.13-1","2.2.16-1","2.2.16-2","2.2.19-1","2.2.19-2","2.2.6-1","2.2.6-2","2.3.0-1","2.3.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21885.json"}},{"package":{"name":"miniflux","ecosystem":"Debian:14","purl":"pkg:deb/debian/miniflux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.16-1"}]}],"versions":["2.2.10-1","2.2.11-1","2.2.12-1","2.2.13-1","2.2.6-1","2.2.6-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21885.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}