{"id":"CVE-2026-125115","state":"PUBLISHED","title":"Novu: `validateUrlSsrf` permits CGNAT (100.64.0.0/10) destinations — affects Workflow HTTP request step + Webhook filter condition","description":"Novu provides an API for sending notifications through multiple channels. Prior to 3.17.0, validateUrlSsrf in libs/application-generic/src/utils/ssrf-url-validation.ts uses the isPrivateIp deny-list without covering the RFC6598 100.64.0.0/10 shared address space or its IPv4-mapped IPv6 forms. The workflow HTTP request step and webhook filter condition can therefore send server-side requests when a configured literal address or resolved hostname falls in that range. In Alibaba Cloud, 100.100.100.200 may expose instance metadata, while self-hosted and multi-tenant deployments may expose provider-internal services, private infrastructure, service meshes, or VPN resources reachable through CGNAT addressing. This issue is fixed in version 3.17.0.","publishedAt":"2026-11-09T22:16:35.104Z","updatedAt":"2026-11-09T22:16:35.104Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["novuhq novu","@novu application-generic"],"affected":[{"vendor":"novuhq","product":"novu","versions":[{"version":"< 3.17.0","status":"affected"}]},{"vendor":"@novu","product":"application-generic","versions":[{"version":"< 3.17.0","status":"affected"}]}],"references":["https://github.com/novuhq/novu/security/advisories/GHSA-vg6v-j97m-h5xq","https://github.com/novuhq/novu/pull/11197","https://github.com/novuhq/novu/releases/tag/v3.17.0"],"weaknesses":["CWE-918"],"ingestedAt":"2026-11-09T22:20:06.645Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/125xxx/CVE-2026-125115.json","commit":"c7dcfa1cc26aecb1a6a14a7dcf063dafe6b05968","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-125115","state":"PUBLISHED","datePublished":"2026-11-09T22:16:35.104Z","dateUpdated":"2026-11-09T22:16:35.104Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-11-09T17:45:35.936Z"},"containers":{"cna":{"title":"Novu: `validateUrlSsrf` permits CGNAT (100.64.0.0/10) destinations — affects Workflow HTTP request step + Webhook filter condition","descriptions":[{"lang":"en","value":"Novu provides an API for sending notifications through multiple channels. Prior to 3.17.0, validateUrlSsrf in libs/application-generic/src/utils/ssrf-url-validation.ts uses the isPrivateIp deny-list without covering the RFC6598 100.64.0.0/10 shared address space or its IPv4-mapped IPv6 forms. The workflow HTTP request step and webhook filter condition can therefore send server-side requests when a configured literal address or resolved hostname falls in that range. In Alibaba Cloud, 100.100.100.200 may expose instance metadata, while self-hosted and multi-tenant deployments may expose provider-internal services, private infrastructure, service meshes, or VPN resources reachable through CGNAT addressing. This issue is fixed in version 3.17.0."}],"affected":[{"vendor":"novuhq","product":"novu","versions":[{"version":"< 3.17.0","status":"affected"}]},{"vendor":"@novu","product":"application-generic","versions":[{"version":"< 3.17.0","status":"affected"}]}],"references":[{"url":"https://github.com/novuhq/novu/security/advisories/GHSA-vg6v-j97m-h5xq","name":"https://github.com/novuhq/novu/security/advisories/GHSA-vg6v-j97m-h5xq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/novuhq/novu/pull/11197","name":"https://github.com/novuhq/novu/pull/11197","tags":["x_refsource_MISC"]},{"url":"https://github.com/novuhq/novu/releases/tag/v3.17.0","name":"https://github.com/novuhq/novu/releases/tag/v3.17.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"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":"2026-11-09T22:16:35.104Z"},"source":{"advisory":"GHSA-vg6v-j97m-h5xq","discovery":"UNKNOWN"}}}}}