CVE-2026-21885

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Source
https://cve.org/CVERecord?id=CVE-2026-21885
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-21885.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-21885
Aliases
Downstream
Related
Published
2026-01-08T13:57:25Z
Modified
2026-10-16T02:58:32Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21885.json"
}
References

Affected packages

Git / github.com/miniflux/v2

Affected ranges

Type
GIT
Repo
https://github.com/miniflux/v2
Events
Introduced
9652dfa1feccd15bbb56d61281f148f71afcb800
Fixed
6439d352d29fb1b6a9543c2309a0cc25f57ac68d
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.2.16"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "cpe":  "cpe:2.3:a:miniflux_project:miniflux:*:*:*:*:*:go:*:*",
            "range":  [
                {
                    "introduced":  "2.0.0"
                },
                {
                    "fixed":  "2.2.16"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Affected versions

2.*
2.0.0
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.15
2.0.16
2.0.17
2.0.18
2.0.19
2.0.2
2.0.20
2.0.21
2.0.22
2.0.23
2.0.24
2.0.25
2.0.26
2.0.27
2.0.28
2.0.29
2.0.3
2.0.30
2.0.31
2.0.32
2.0.33
2.0.34
2.0.35
2.0.36
2.0.37
2.0.38
2.0.39
2.0.4
2.0.40
2.0.41
2.0.42
2.0.43
2.0.44
2.0.45
2.0.46
2.0.47
2.0.48
2.0.49
2.0.5
2.0.50
2.0.51
2.0.6
2.0.7
2.0.8
2.0.9
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.2.0
2.2.1
2.2.10
2.2.11
2.2.12
2.2.13
2.2.14
2.2.15
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
v1.*
v1.0.46
v2.*
v2.0.46
v2.0.47
v2.0.48
v2.0.49
v2.0.51
v2.1.1
v2.1.2
v2.2.0
v2.2.10
v2.2.11
v2.2.12
v2.2.13
v2.2.14
v2.2.15
v2.2.3
v2.2.7
v2.2.8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-21885.json"