CVE-2026-73840 PUBLISHED

OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook signature bypass)

Assigner: GitHub_M
Reserved: 13.08.2026 Published: 13.08.2026 Updated: 13.08.2026

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, the POST /api/v1alpha1/autobuild endpoint in internal/openchoreo-api/api/handlers/webhook_handler.go selected a webhook provider from caller-controlled X-Event-Key, accepted Bitbucket requests without HMAC-SHA256 in X-Hub-Signature or a configured bitbucket-secret, and allowed unauthenticated build triggers for components matched by repository URL and branch, including cross-provider triggers using attacker-supplied commit SHAs. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 5.3

Product Status

Vendor openchoreo
Product openchoreo
Versions
  • Version < 1.0.3 is affected
  • Version >= 1.1.0, < 1.1.3 is affected
  • Version >= 1.2.0-rc.1, < 1.2.0-rc.2 is affected

References

Problem Types

  • CWE-287: Improper Authentication CWE
  • CWE-290: Authentication Bypass by Spoofing CWE
  • CWE-345: Insufficient Verification of Data Authenticity CWE