{"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": "2026-04-10T19:20:16.365Z"}, "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-40168", "lastModified": "2026-04-10T20:16:22.643", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-10T20:16:22.643", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06"}, {"source": "security-advisories@github.com", "url": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}