miniflux: Miniflux 2 is an open source feed reader
CVE-2026-21885 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-21885, released January 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| govulncheck-vulndb · opensuse-leap 15.6 | 0.0.20260114T191543-150000.1.137.1 | SUSE-SU-2026:0142-1 | Jan 17, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
| miniflux · Debian 14 | 2.2.16-1 | DEBIAN-CVE-2026-21885 | Jan 8, 2026 |
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