{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-118665",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-28T17:25:37.562Z",
        "datePublished": "2026-10-28T20:41:47.228Z",
        "dateUpdated": "2026-10-28T20:41:47.228Z"
    },
    "containers": {
        "cna": {
            "title": "GraphQL Tools: Per-request connection parameters persist into later users' WebSocket authentications",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-613",
                            "lang": "en",
                            "description": "CWE-613: Insufficient Session Expiration",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "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"
                    }
                }
            ],
            "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"
                }
            ],
            "affected": [
                {
                    "vendor": "ardatan",
                    "product": "graphql-tools",
                    "versions": [
                        {
                            "version": "< 9.0.36",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "@graphql-tools",
                    "product": "executor-legacy-ws",
                    "versions": [
                        {
                            "version": "< 1.1.36",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-28T20:41:47.228Z"
            },
            "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's 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."
                }
            ],
            "source": {
                "advisory": "GHSA-434m-5hcj-pxf3",
                "discovery": "UNKNOWN"
            }
        }
    }
}