6.5Medium
CVE-2026-3118Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer hub orchestrator plugin
Description
A security flaw was identified in the Orchestrator Plugin of Red Hat Developer Hub (Backstage). The issue occurs due to insufficient input validation in GraphQL query handling. An authenticated user can inject specially crafted input into API requests, which disrupts backend query processing. This results in the entire Backstage application crashing and restarting, leading to a platform-wide Denial of Service (DoS). As a result, legitimate users temporarily lose access to the platform.
Weakness (CWE):
CWE-89
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| redhat | developer hub | — | |
| Red Hat | Red Hat Developer Hub 1.8 | all versions | |
| Red Hat | Red Hat Developer Hub 1.9 | all versions | |
| rhdh | 1.8 | — | |
| rhdh | 1.9 | — |
References and patches
- RHSA-2026:13826 vendor-advisory
- RHSA-2026:9742 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-3118 vdb-entryVendor Advisory
- RHBZ#2442273 issue-trackingIssue TrackingVendor Advisory
CPE matches (NVD) (1)
cpe:2.3:a:redhat:developer_hub:-:*:*:*:*:*:*:*