---
id: CVE-2026-73840
title: 'OpenChoreo is a complete, open-source developer platform for Kubernetes'
summary: >-
  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
  provi…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-287
  - CWE-290
  - CWE-345
vendor: openchoreo
product: github.com/openchoreo/openchoreo
affected:
  - github.com/openchoreo/openchoreo < 1.0.3
  - 'github.com/openchoreo/openchoreo >= 1.1.0, < 1.1.3'
  - 'github.com/openchoreo/openchoreo >= 1.2.0-rc.1, < 1.2.0-rc.2'
patched:
  - github.com/openchoreo/openchoreo 1.0.3
  - github.com/openchoreo/openchoreo 1.1.3
  - github.com/openchoreo/openchoreo 1.2.0-rc.2
published: '2026-08-13'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:56:50.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73840'
references:
  - url: >-
      https://github.com/openchoreo/openchoreo/commit/268efd9b762a3f4f72b55d9c1b13dfc55122127b
    label: security-advisories@github.com
  - url: >-
      https://github.com/openchoreo/openchoreo/commit/8af4a3fc8725fc2d8a9de9611e77278a5c48f978
    label: security-advisories@github.com
  - url: >-
      https://github.com/openchoreo/openchoreo/commit/f540553db7143141b73bb37fae02102e6f082a34
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/pull/4239'
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/pull/4252'
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/pull/4253'
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/releases/tag/v1.0.3'
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/releases/tag/v1.1.3'
    label: security-advisories@github.com
  - url: 'https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2'
    label: security-advisories@github.com
  - url: >-
      https://github.com/openchoreo/openchoreo/security/advisories/GHSA-c5f6-2rm9-2w8g
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73840'
  - url: 'https://github.com/advisories/GHSA-c5f6-2rm9-2w8g'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00346
epssPercentile: 0.25387
aliases:
  - GHSA-c5f6-2rm9-2w8g
ecosystem: go
ingestedAt: '2026-09-02T23:52:22.766Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-73840)

Affected packages:

- `github.com/openchoreo/openchoreo < 1.0.3`
- `github.com/openchoreo/openchoreo >= 1.1.0, < 1.1.3`
- `github.com/openchoreo/openchoreo >= 1.2.0-rc.1, < 1.2.0-rc.2`

Patched in:

- `github.com/openchoreo/openchoreo 1.0.3`
- `github.com/openchoreo/openchoreo 1.1.3`
- `github.com/openchoreo/openchoreo 1.2.0-rc.2`

Source: https://github.com/advisories/GHSA-c5f6-2rm9-2w8g