Vulnerability Description
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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1e
- https://github.com/flytohub/flyto-core/releases/tag/v2.26.7
- https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67
- https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67
FAQ
What is CVE-2026-67426?
CVE-2026-67426 is a vulnerability with a CVSS score of 9.3 (CRITICAL). 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 /r...
How severe is CVE-2026-67426?
CVE-2026-67426 has been rated CRITICAL with a CVSS base score of 9.3/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-67426?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.