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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xwh2-742g-w3wp Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 12 Jan 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Miniflux Project
Miniflux Project miniflux
CPEs cpe:2.3:a:miniflux_project:miniflux:*:*:*:*:*:go:*:*
Vendors & Products Miniflux Project
Miniflux Project miniflux

Thu, 08 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 08 Jan 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-08T15:55:28.121Z

Reserved: 2026-01-05T17:24:36.928Z

Link: CVE-2026-21885

cve-icon Vulnrichment

Updated: 2026-01-08T14:52:37.831Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-08T14:15:57.257

Modified: 2026-01-12T16:55:42.353

Link: CVE-2026-21885

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses