CVE-2026-73666: CWE-306: Missing Authentication for Critical Function in openchoreo backstage-plugins
CVE-2026-73666 is a high-severity vulnerability in OpenChoreo backstage-plugins where certain versions prior to 1.0.4, 1.1.4, and 1.2.1 have missing authentication for critical backend API functions. This flaw allows unauthenticated access to /api/* endpoints, enabling unauthorized catalog reads, scaffolder log reads, and catalog location modifications. The issue arises from hardcoded configuration flags that disable default authentication policies. Fixed versions have been released to address this problem.
AI Analysis
Technical Summary
OpenChoreo backstage-plugins versions before 1.0.4, 1.1.4, and 1.2.1 contain a missing authentication vulnerability (CWE-306) due to hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment set to true. This configuration exposes the /api/* endpoints without requiring authentication, allowing unauthenticated users to read catalog data, scaffolder logs, and create or delete catalog locations. The vulnerability is resolved in versions 1.0.4, 1.1.4, and 1.2.1.
Potential Impact
The vulnerability allows unauthenticated remote attackers to access sensitive backend API endpoints, resulting in unauthorized disclosure of catalog information and scaffolder logs, as well as unauthorized modification of catalog locations. The CVSS 3.1 score is 8.2 (High), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Upgrade OpenChoreo backstage-plugins to version 1.0.4, 1.1.4, or 1.2.1 or later, where the authentication bypass issue is fixed. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the version fixes stated in the advisory.
CVE-2026-73666: CWE-306: Missing Authentication for Critical Function in openchoreo backstage-plugins
Description
CVE-2026-73666 is a high-severity vulnerability in OpenChoreo backstage-plugins where certain versions prior to 1.0.4, 1.1.4, and 1.2.1 have missing authentication for critical backend API functions. This flaw allows unauthenticated access to /api/* endpoints, enabling unauthorized catalog reads, scaffolder log reads, and catalog location modifications. The issue arises from hardcoded configuration flags that disable default authentication policies. Fixed versions have been released to address this problem.
CVSS v3.1
Score 8.2high
Affected software
pkg:github/openchoreo/backstage-pluginsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenChoreo backstage-plugins versions before 1.0.4, 1.1.4, and 1.2.1 contain a missing authentication vulnerability (CWE-306) due to hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment set to true. This configuration exposes the /api/* endpoints without requiring authentication, allowing unauthenticated users to read catalog data, scaffolder logs, and create or delete catalog locations. The vulnerability is resolved in versions 1.0.4, 1.1.4, and 1.2.1.
Potential Impact
The vulnerability allows unauthenticated remote attackers to access sensitive backend API endpoints, resulting in unauthorized disclosure of catalog information and scaffolder logs, as well as unauthorized modification of catalog locations. The CVSS 3.1 score is 8.2 (High), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, high confidentiality impact, low integrity impact, and no availability impact.
Mitigation Recommendations
Upgrade OpenChoreo backstage-plugins to version 1.0.4, 1.1.4, or 1.2.1 or later, where the authentication bypass issue is fixed. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the version fixes stated in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-13T14:04:09.606Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e4132bf8831d539e05290
Added to database: 08/13/2026, 22:12:02 UTC
Last enriched: 08/13/2026, 22:26:07 UTC
Last updated: 08/13/2026, 22:26:24 UTC
Views: 4
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