{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40168","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-09T19:31:56.014Z","datePublished":"2026-04-10T19:20:16.365Z","dateUpdated":"2026-04-13T20:55:15.792Z"},"containers":{"cna":{"title":"Postiz has Server-Side Request Forgery via Redirect Bypass in /api/public/stream","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":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww"},{"name":"https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06","tags":["x_refsource_MISC"],"url":"https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06"},{"name":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5","tags":["x_refsource_MISC"],"url":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5"}],"affected":[{"vendor":"gitroomhq","product":"postiz-app","versions":[{"version":"< 2.21.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-10T19:20:16.365Z"},"descriptions":[{"lang":"en","value":"Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource."}],"source":{"advisory":"GHSA-34w8-5j2v-h6ww","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-13T20:55:02.053732Z","id":"CVE-2026-40168","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"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":"2026-04-13T20:55:15.792Z"}}]}}