{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-21885", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-05T17:24:36.928Z", "datePublished": "2026-01-08T13:57:25.445Z", "dateUpdated": "2026-01-08T15:55:28.121Z" }, "containers": { "cna": { "title": "Miniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resources", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" } } ], "references": [ { "name": "https://github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wp", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wp" } ], "affected": [ { "vendor": "miniflux", "product": "v2", "versions": [ { "version": "< 2.2.16", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-08T13:57:25.445Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-xwh2-742g-w3wp", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/miniflux/v2/security/advisories/GHSA-xwh2-742g-w3wp", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-08T14:52:34.949191Z", "id": "CVE-2026-21885", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-08T15:55:28.121Z" } } ] } }