CVE-2026-73840OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook signature bypass)
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-287, CWE-290, CWE-345
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openchoreo openchoreo openchoreo:openchoreo (from the name) | before 1.0.3; from 1.1.0, < 1.1.3; from 1.2.0-rc.1, < 1.2.0-rc.2 | CNA record |
References
- https://github.com/openchoreo/openchoreo/security/advisories/GHSA-c5f6-2rm9-2w8gx-refsource-confirm
- https://github.com/openchoreo/openchoreo/pull/4239x-refsource-misc
- https://github.com/openchoreo/openchoreo/pull/4252x-refsource-misc
- https://github.com/openchoreo/openchoreo/pull/4253x-refsource-misc
- https://github.com/openchoreo/openchoreo/commit/268efd9b762a3f4f72b55d9c1b13dfc55122127bx-refsource-misc
- https://github.com/openchoreo/openchoreo/commit/8af4a3fc8725fc2d8a9de9611e77278a5c48f978x-refsource-misc
- https://github.com/openchoreo/openchoreo/commit/f540553db7143141b73bb37fae02102e6f082a34x-refsource-misc
- https://github.com/openchoreo/openchoreo/releases/tag/v1.0.3x-refsource-misc
- https://github.com/openchoreo/openchoreo/releases/tag/v1.1.3x-refsource-misc
- https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.