{"id":"CVE-2026-73247","summary":"Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata","details":"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.","aliases":["GHSA-r56g-q4p6-m3p6"],"modified":"2026-09-15T03:48:21.688646048Z","published":"2026-08-11T21:50:21.039Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73247.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-918"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73247.json"},{"type":"ADVISORY","url":"https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73247"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kestra-io/kestra","events":[{"introduced":"0"},{"fixed":"f3f5461e829953715ba446a5439f1d4526f14d5e"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v2.0.0-rc15","v2.0.0-rc14","v2.0.0-rc13","design-system/v0.3.0","design-system/v0.2.0","design-system/v0.1.5","topology/v0.0.2","design-system/v0.1.4","design-system/v0.1.3","design-system/v0.1.2","design-system/v0.1.1","v0.0.1234","v0.19.0","v0.9.1","v0.9.0","v0.8.1","v0.8.0","v0.7.1","v0.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73247.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}