CVE-2026-73840CWE-287CWE-290CWE-345

CVE-2026-73840

Medium · published August 14, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
27.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00346 · 27.0th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-290 · Authentication Bypass by Spoofing; CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-08-14T02:17Z
References (10)
EPSS history
Timeline
  • 13 AUG 21:52Z
    OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook signature bypass)
    cvelistv5