Medium severity6.5OSV Advisory· Published Jan 8, 2026· Updated Jun 17, 2026
CVE-2026-21885
CVE-2026-21885
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.
AI Insight
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
miniflux.app/v2Go | < 2.2.16 | 2.2.16 |
Affected products
5- ghsa-coords3 versionspkg:golang/miniflux.app/v2pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
< 2.2.16+ 2 more
- (no CPE)range: < 2.2.16
- (no CPE)range: < 0.0.20260114T191543-150000.1.137.1
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
3- github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wpnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-xwh2-742g-w3wpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-21885ghsaADVISORY
News mentions
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