TI-2024-30780 Aliases CVE-2024-45815 GHSA-3x3f-jcp3-g22j

Prototype pollution in @backstage/plugin-catalog-backend

LOW 29CWE-1321Published 2024-09-17 · Updated 2024-09-18

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00513 43rd percentileScored 2026-11-07

Fix Fixed backstage (backstage): 1.26.0@backstage/plugin-catalog-backend (npm): 1.26.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
backstage	backstage	before 1.26.0	1.26.0	Patch available	CNA
—	@backstage/plugin-catalog-backend (npm)	before 1.26.0	1.26.0	Patch available	GHSA-3x3f-jcp3-g22j

backstage Vendorbackstage Affected before 1.26.0 Fixed in 1.26.0 Patch available CNA
@backstage/plugin-catalog-backend (npm) Vendor— Affected before 1.26.0 Fixed in 1.26.0 Patch available GHSA-3x3f-jcp3-g22j

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:linuxfoundation:backstage::::::::	before 1.26.0	Vulnerable	backstage

cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* Versions before 1.26.0 Vulnerable ·backstage

Remediation

Fix · CNA backstage (backstage) Fixed in 1.26.0
Fix · GHSA-3x3f-jcp3-g22j @backstage/plugin-catalog-backend (npm) Fixed in 1.26.0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Developer Hub (RHDH) 1.4	Fixed	—

Not affected: 2 products

Red Hat Developer Hub (RHDH) 1.4
Red Hat Developer Hub 1

Timeline

2026-10-02 Threatist record created from CVE-2024-45815
2026-10-03 Alias added: GHSA-3x3f-jcp3-g22j
2026-10-27 Affected versions changed · Red Hat

References

Advisory 2

Other 1

https://github.com/backstage/backstage

TI-2023-17988 Insecure sandbox in Backstage Scaffolder plugin CVSS 3.1CRITICAL 9.9
TI-2026-69075 Sensitive information exposure in Backstage Scaffolder CVSS 3.1CRITICAL 9.6
TI-2026-69061 Path traversal in Backstage Bitbucket pull-request scaffolder actions CVSS 3.1CRITICAL 9.9
TI-2026-60083 Backstage: Improper input validation in TechDocs MkDocs configuration CVSS 3.1HIGH 8.8
TI-2026-69165 Backstage TechDocs config flaw allows code execution CVSS 3.1HIGH 8.8
TI-2026-69083 Code injection via MkDocs theme configuration in Backstage TechDocs CVSS 3.1HIGH 8.8

See all 52 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences