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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73840
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-13 22:17:28 UTC
Updated2026-08-13 22:17:28 UTC
DescriptionOpenChoreo 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Openchoreo Openchoreo affected < 1.0.3 Not specified
CNA Openchoreo Openchoreo affected >= 1.1.0, < 1.1.3 Not specified
CNA Openchoreo Openchoreo affected >= 1.2.0-rc.1, < 1.2.0-rc.2 Not specified

References

ReferenceSourceLinkTags
github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2 [email protected] github.com
github.com/openchoreo/openchoreo/pull/4253 [email protected] github.com
github.com/openchoreo/openchoreo/commit/f540553db7143141b73bb37fae02102e... [email protected] github.com
github.com/openchoreo/openchoreo/pull/4252 [email protected] github.com
github.com/openchoreo/openchoreo/releases/tag/v1.1.3 [email protected] github.com
github.com/openchoreo/openchoreo/pull/4239 [email protected] github.com
github.com/openchoreo/openchoreo/commit/8af4a3fc8725fc2d8a9de9611e77278a... [email protected] github.com
github.com/openchoreo/openchoreo/commit/268efd9b762a3f4f72b55d9c1b13dfc5... [email protected] github.com
github.com/openchoreo/openchoreo/releases/tag/v1.0.3 [email protected] github.com
github.com/openchoreo/openchoreo/security/advisories/GHSA-c5f6-2rm9-2w8g [email protected] github.com
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