{"id":"CVE-2026-73247","state":"PUBLISHED","title":"Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata","description":"Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata.","publishedAt":"2026-08-11T21:50:21.039Z","updatedAt":"2026-08-13T14:07:24.161Z","severity":{"score":8.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["kestra-io kestra"],"affected":[{"vendor":"kestra-io","product":"kestra","versions":[{"version":"< 2.0.0","status":"affected"}]}],"references":["https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73247.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73247","state":"PUBLISHED","datePublished":"2026-08-11T21:50:21.039Z","dateUpdated":"2026-08-13T14:07:24.161Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-11T17:18:01.597Z"},"containers":{"cna":{"title":"Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata","descriptions":[{"lang":"en","value":"Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata."}],"affected":[{"vendor":"kestra-io","product":"kestra","versions":[{"version":"< 2.0.0","status":"affected"}]}],"references":[{"url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6","name":"https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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":"2026-08-11T21:50:21.039Z"},"source":{"advisory":"GHSA-r56g-q4p6-m3p6","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T13:22:52.239035Z","id":"CVE-2026-73247","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-13T14:07:24.161Z"}}]}}}