DEBIAN-CVE-2026-21885
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.
DEBIAN-CVE-2026-21885
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-21885
miniflux
Source reference: /affected/0/package/name
- Affected versions
- 2.2.10-1
Source reference:
/affected/0/versions2.2.11-1Source reference:
/affected/0/versions2.2.12-1Source reference:
/affected/0/versions2.2.13-1Source reference:
/affected/0/versions2.2.16-1Source reference:
/affected/0/versions2.2.16-2Source reference:
/affected/0/versions2.2.19-1Source reference:
/affected/0/versions2.2.19-2Source reference:
/affected/0/versions2.2.6-1Source reference:
/affected/0/versions2.2.6-2Source reference:
/affected/0/versions2.3.0-1Source reference:
/affected/0/versions2.3.2-1Source reference:
/affected/0/versions2.3.3-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
miniflux
Source reference: /affected/1/package/name
- Affected versions
- 2.2.10-1
Source reference:
/affected/1/versions2.2.11-1Source reference:
/affected/1/versions2.2.12-1Source reference:
/affected/1/versions2.2.13-1Source reference:
/affected/1/versions2.2.6-1Source reference:
/affected/1/versions2.2.6-2Source reference:
/affected/1/versions - Fixed versions
- 2.2.16-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "miniflux",
"purl": "pkg:deb/debian/miniflux?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"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",
"2.3.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21885.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.16-1"
}
]
}
],
"package": {
"name": "miniflux",
"purl": "pkg:deb/debian/miniflux?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-21885.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56636 · Revision 1
- Added to Heist Feed
- Publisher date