{"api_version":"1","generated_at":"2026-04-11T03:24:45+00:00","cve":"CVE-2026-40168","urls":{"html":"https://cve.report/CVE-2026-40168","api":"https://cve.report/api/cve/CVE-2026-40168.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-40168","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40168"},"summary":{"title":"Postiz has Server-Side Request Forgery via Redirect Bypass in /api/public/stream","description":"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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-04-10 20:16:22","updated_at":"2026-04-10 20:16:22"},"problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","data":{"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":[{"url":"https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06","name":"https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5","name":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww","name":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-40168","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40168","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"gitroomhq","product":"postiz-app","version":"affected < 2.21.5","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"postiz-app","vendor":"gitroomhq","versions":[{"status":"affected","version":"< 2.21.5"}]}],"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."}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-10T19:20:16.365Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"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"}],"source":{"advisory":"GHSA-34w8-5j2v-h6ww","discovery":"UNKNOWN"},"title":"Postiz has Server-Side Request Forgery via Redirect Bypass in /api/public/stream"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-40168","datePublished":"2026-04-10T19:20:16.365Z","dateReserved":"2026-04-09T19:31:56.014Z","dateUpdated":"2026-04-10T19:20:16.365Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-10 20:16:22","lastModifiedDate":"2026-04-10 20:16:22","problem_types":["CWE-918","CWE-918 CWE-918: Server-Side Request Forgery (SSRF)"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":4.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"40168","Ordinal":"1","Title":"Postiz has Server-Side Request Forgery via Redirect Bypass in /a","CVE":"CVE-2026-40168","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"40168","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Postiz has Server-Side Request Forgery via Redirect Bypass in /a"}]}}}