What’s Vulnerable › Vulnerabilities
CVE-2024-45815: Prototype pollution in @backstage/plugin-catalog-backend
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-09-17 · updated 2026-06-17
- Weakness: CWE-1321
Description
Backstage is an open framework for building developer portals. A malicious actor with authenticated access to a Backstage instance with the catalog backend plugin installed is able to interrupt the service using a specially crafted query to the catalog API. This has been fixed in the `1.26.0` release of the `@backstage/plugin-catalog-backend`. All users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products
- backstage: before 1.26.0 — fixed in 1.26.0
How to fix
Upgrade to a fixed version: backstage 1.26.0. Check the vendor advisory for mitigations.
References
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