{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "graphql-tools",
          "vendor": "ardatan",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.0.36"
            }
          ]
        },
        {
          "product": "executor-legacy-ws",
          "vendor": "@graphql-tools",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.1.36"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to version 1.1.36 of the GraphQL Tools legacy WebSocket executor package, buildWSLegacyExecutor in packages/executors/legacy-ws/src/index.ts retains request.extensions.connectionParams in the closure-scoped executorConnectionParams object after cleanupWebsocket closes a connection. When one executor is reused across different authorization contexts, a later request that omits a sensitive key can send an earlier caller\u0027s Authorization or tenant value in its connection_init payload, causing the downstream server to authenticate the later caller as the earlier user. Applications that create a new executor for every request are not affected. This issue is fixed in version 1.1.36 of the GraphQL Tools legacy WebSocket executor package."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-613",
              "description": "CWE-613: Insufficient Session Expiration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T20:41:47.228Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ardatan/graphql-tools/security/advisories/GHSA-434m-5hcj-pxf3"
        },
        {
          "name": "https://github.com/ardatan/graphql-tools/pull/8480",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ardatan/graphql-tools/pull/8480"
        },
        {
          "name": "https://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ardatan/graphql-tools/commit/c2f226e6f68236be9e4a577f29faeaa92547458b"
        },
        {
          "name": "https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/executor-legacy-ws@1.1.36",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/executor-legacy-ws@1.1.36"
        }
      ],
      "source": {
        "advisory": "GHSA-434m-5hcj-pxf3",
        "discovery": "UNKNOWN"
      },
      "title": "GraphQL Tools: Per-request connection parameters persist into later users\u0027 WebSocket authentications"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-118665",
    "datePublished": "2026-10-28T20:41:47.228Z",
    "dateReserved": "2026-10-28T17:25:37.562Z",
    "dateUpdated": "2026-10-28T20:41:47.228Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}