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CVE-2026-73666— OpenChoreo: Unauthenticated Backstage developer-portal API exposes OpenChoreo catalog data, scaffolder logs, and allows unauthenticated catalog write/delete

Quick assessment

Affected
openchoreo backstage-plugins
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenChoreo Backstage Plugins是openchoreo组织的一系列扩展软件功能的插件组件。 OpenChoreo Backstage Plugins 1.0.4之前版本、1.1.4之前版本和1.2.1之前版本存在授权问题漏洞，该漏洞源于硬编码禁用默认认证策略，可能导致未经身份验证的攻击者读取目录数据、读取scaffolder日志以及创建或删除目录位置。

CVSS 8.2 · High EPSS 0.68% · P50

Affected Version Matrix 3

VendorProduct Version RangeStatus
openchoreo backstage-plugins < 1.0.4 affected
>= 1.1.0, < 1.1.4 affected
>= 1.2.0-rc.1, < 1.2.1 affected
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I. Basic Information for CVE-2026-73666

Vulnerability Information
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Vulnerability Title
OpenChoreo: Unauthenticated Backstage developer-portal API exposes OpenChoreo catalog data, scaffolder logs, and allows unauthenticated catalog write/delete
Source: CVE Program / CVE List V5
Vulnerability Description
OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/* without authentication and allowing unauthenticated catalog reads, scaffolder log reads, and catalog location creation or deletion. This issue is fixed in versions 1.0.4, 1.1.4, and 1.2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
OpenChoreo Backstage Plugins 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenChoreo Backstage Plugins是openchoreo组织的一系列扩展软件功能的插件组件。 OpenChoreo Backstage Plugins 1.0.4之前版本、1.1.4之前版本和1.2.1之前版本存在授权问题漏洞，该漏洞源于硬编码禁用默认认证策略，可能导致未经身份验证的攻击者读取目录数据、读取scaffolder日志以及创建或删除目录位置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openchoreo backstage-plugins < 1.0.4 -

II. Public POCs for CVE-2026-73666

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9042 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-73666

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Patches & Fixes for CVE-2026-73666 (10)

Vendor Advisories for CVE-2026-73666 (1)

Vendor Pages for CVE-2026-73666 (1)

Same Patch Batch · openchoreo · 2026-08-13 · 6 CVEs total

CVE-2026-73843 9.6 CRITICAL OpenChoreo: Unauthenticated access to data-plane operations via OpenChoreo cluster-gateway
CVE-2026-73842 9.0 CRITICAL OpenChoreo: cluster-gateway internal proxy performs no caller authentication and is not re
CVE-2026-73667 8.8 HIGH OpenChoreo: Authenticated OS command injection via OpenChoreo Workflow Plane templates ena
CVE-2026-73841 8.8 HIGH OpenChoreo: Cross-project command execution and wirelog view access via OpenChoreo opencho
CVE-2026-73840 5.3 MEDIUM OpenChoreo: Unauthenticated build/workflow trigger via git-provider confusion (webhook sig

IV. Related Vulnerabilities

Same vendor: openchoreo
Same weakness: CWE-306

V. Comments for CVE-2026-73666

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