Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer hub orchestrator plugin

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-3118",
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "dateUpdated": "2026-02-25T11:25:55.016Z",
    "dateReserved": "2026-02-24T12:08:32.734Z",
    "datePublished": "2026-02-25T11:25:55.016Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat",
        "dateUpdated": "2026-02-25T11:25:55.016Z"
      },
      "datePublic": "2026-02-24T00:00:00.000Z",
      "title": "Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer hub orchestrator plugin",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "affected": [
        {
          "vendor": "Red Hat",
          "product": "Red Hat Developer Hub",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "rhdh/rhdh-hub-rhel9",
          "cpes": [
            "cpe:/a:redhat:rhdh:1"
          ],
          "defaultStatus": "unknown"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')",
              "cweId": "CWE-89",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://access.redhat.com/security/cve/CVE-2026-3118",
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ]
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442273",
          "name": "RHBZ#2442273",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ]
        }
      ],
      "metrics": [
        {},
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM"
          }
        }
      ],
      "workarounds": [
        {
          "lang": "en",
          "value": "To mitigate this issue, restrict network access to the Red Hat Developer Hub instance to trusted users and networks only. This limits the exposure of the vulnerable Orchestrator Plugin to unauthorized access."
        }
      ],
      "timeline": [
        {
          "time": "2026-02-24T12:08:42.955Z",
          "lang": "en",
          "value": "Reported to Red Hat."
        },
        {
          "time": "2026-02-24T00:00:00.000Z",
          "lang": "en",
          "value": "Made public."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Thibault Guittet for reporting this issue."
        }
      ]
    }
  }
}