CVE-2026-21885
January 08, 2026
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.
Affected Packages
miniflux.app/v2 (GO):
Affected version(s) >=v2.0.0-20250330024941-cb695e653a08 <v2.2.16Fix Suggestion:
Update to version v2.2.16Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
EPSS
Base Score:
0.04
