{"id":"CVE-2026-67426","summary":"Flyto2 Core: Unauthenticated flyto-verification /run: callback_url SSRF and internal runner-secret exfiltration","details":"Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the standalone flyto-verification service in src/core/verification_service.py exposes unauthenticated POST /run on 0.0.0.0:8344 and uses client-supplied callback_url for an outbound POST with X-Internal-Key: $FLYTO_RUNNER_SECRET while bypassing target_allowed, allowing unauthenticated SSRF and runner secret exfiltration. This issue is fixed in version 2.26.7.","aliases":["GHSA-jx74-cqjv-2c67"],"modified":"2026-07-31T03:49:06.705033326Z","published":"2026-07-29T18:43:26.247Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-306","CWE-522","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67426.json"},"references":[{"type":"WEB","url":"https://github.com/flytohub/flyto-core/releases/tag/v2.26.7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67426.json"},{"type":"ADVISORY","url":"https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67426"},{"type":"FIX","url":"https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/flytohub/flyto-core","events":[{"introduced":"0"},{"fixed":"0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9"},{"fixed":"9449def37907190798b5d677b716526b09ae7302"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.26.7"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v2.26.6","v2.26.4","v2.26.3","v2.26.0","v2.25.27","v2.17.6","v2.16.3","v2.5.0","v2.2.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67426.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N"}]}