{"id":"CVE-2026-34207","state":"PUBLISHED","title":"TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Validation","description":"TypeBot is a chatbot builder tool. In versions prior to 3.16.0, SSRF protection for Webhook / HTTP Request blocks validates only the URL string, blocked hostname literals, and literal IP formats. It does not resolve DNS before allowing the request. As a result, a hostname such as ssrf-repro.example that resolves to 127.0.0.1, 169.254.169.254, or RFC1918/private space passes validation and is later fetched by the backend HTTP client. This enables server-side request forgery to loopback, cloud metadata, and private network targets. This issue has been resolved in version 3.16.0.","publishedAt":"2026-05-22T17:12:15.918Z","updatedAt":"2026-05-22T18:30:06.009Z","severity":{"score":7.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["baptisteArno typebot.io"],"affected":[{"vendor":"baptisteArno","product":"typebot.io","versions":[{"version":"< 3.16.0","status":"affected"}]}],"references":["https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp","https://github.com/baptisteArno/typebot.io/commit/23818bb0e54db23c456ee3fa6b12d82b2af848b8","https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0"],"weaknesses":["CWE-20","CWE-918"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/34xxx/CVE-2026-34207.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-34207","state":"PUBLISHED","datePublished":"2026-05-22T17:12:15.918Z","dateUpdated":"2026-05-22T18:30:06.009Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-26T15:57:52.323Z"},"containers":{"cna":{"title":"TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Validation","descriptions":[{"lang":"en","value":"TypeBot is a chatbot builder tool. In versions prior to 3.16.0, SSRF protection for Webhook / HTTP Request blocks validates only the URL string, blocked hostname literals, and literal IP formats. It does not resolve DNS before allowing the request. As a result, a hostname such as ssrf-repro.example that resolves to 127.0.0.1, 169.254.169.254, or RFC1918/private space passes validation and is later fetched by the backend HTTP client. This enables server-side request forgery to loopback, cloud metadata, and private network targets. This issue has been resolved in version 3.16.0."}],"affected":[{"vendor":"baptisteArno","product":"typebot.io","versions":[{"version":"< 3.16.0","status":"affected"}]}],"references":[{"url":"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp","name":"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/baptisteArno/typebot.io/commit/23818bb0e54db23c456ee3fa6b12d82b2af848b8","name":"https://github.com/baptisteArno/typebot.io/commit/23818bb0e54db23c456ee3fa6b12d82b2af848b8","tags":["x_refsource_MISC"]},{"url":"https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0","name":"https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-22T17:14:43.920Z"},"source":{"advisory":"GHSA-grcc-6x37-wwgp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-22T18:29:41.118648Z","id":"CVE-2026-34207","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-22T18:30:06.009Z"}}]}}}