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OpenAdvisories
Medium · 5.3 CVE-2026-73840 EUVD-2026-58546GHSA-c5f6-2rm9-2w8gGO-2026-6360

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

Published Aug 13, 2026 · Updated Aug 14, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
openchoreo openchoreo < 1.0.3, >= 1.1.0, < 1.1.3, >= 1.2.0-rc.1, < 1.2.0-rc.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES for SAP 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 SUSE-SU-2026:23863-1, SUSE-SU-2026:23855-1
SLES 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 SUSE-SU-2026:23863-1, SUSE-SU-2026:23855-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260916T180043-160000.1.1 openSUSE-SU-2026:21897-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/openchoreo/openchoreo < 1.0.3 1.0.3 GHSA-c5f6-2rm9-2w8g
Go github.com/openchoreo/openchoreo >= 1.1.0, < 1.1.3 1.1.3 GHSA-c5f6-2rm9-2w8g
Go github.com/openchoreo/openchoreo >= 1.2.0-rc.1, < 1.2.0-rc.2 1.2.0-rc.2 GHSA-c5f6-2rm9-2w8g
Go github.com/openchoreo/openchoreo < 1.0.3 · >= 1.1.0, < 1.1.3 · >= 1.2.0-rc.1, < 1.2.0-rc.2 1.0.3, 1.1.3, 1.2.0-rc.2 GO-2026-6360

Advisories 3

References