{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-114604",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-21T20:34:25.599Z",
        "datePublished": "2026-11-05T20:37:39.814Z",
        "dateUpdated": "2026-11-05T20:37:39.814Z"
    },
    "containers": {
        "cna": {
            "title": "GraphQL Tools: Prototype pollution in mergeIncrementalResult via non-primitive path segments",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1321",
                            "lang": "en",
                            "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.4,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/ardatan/graphql-tools/security/advisories/GHSA-c4qx-w738-7hr3",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/ardatan/graphql-tools/security/advisories/GHSA-c4qx-w738-7hr3"
                },
                {
                    "name": "https://github.com/ardatan/graphql-tools/pull/8467",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/ardatan/graphql-tools/pull/8467"
                },
                {
                    "name": "https://github.com/ardatan/graphql-tools/commit/19f5b3373fd7ace0688d19950fc529ce8347952a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/ardatan/graphql-tools/commit/19f5b3373fd7ace0688d19950fc529ce8347952a"
                },
                {
                    "name": "https://github.com/ardatan/graphql-tools/commit/20d36a5c6eb8fd5524420988e01a48618c450d70",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/ardatan/graphql-tools/commit/20d36a5c6eb8fd5524420988e01a48618c450d70"
                },
                {
                    "name": "https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/utils@12.0.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/ardatan/graphql-tools/releases/tag/@graphql-tools/utils@12.0.2"
                }
            ],
            "affected": [
                {
                    "vendor": "ardatan",
                    "product": "graphql-tools",
                    "versions": [
                        {
                            "version": ">= 10.10.1, < 12.0.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-11-05T20:37:39.814Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. From 10.10.1 until 12.0.2, the @graphql-tools/utils mergeIncrementalResult helper passes incrementalResult.path segments to setObjectKeyPath without runtime primitive-type validation. A non-primitive segment can bypass strict comparisons against __proto__, constructor, and prototype, then be coerced during property access so a malicious or compromised upstream incremental GraphQL response writes attacker-controlled properties to Object.prototype in the consuming Node.js process. The affected implementation is packages/utils/src/mergeIncrementalResult.ts and is reachable when consumers merge untrusted @defer or @stream transport results. This issue is fixed in version 12.0.2."
                }
            ],
            "source": {
                "advisory": "GHSA-c4qx-w738-7hr3",
                "discovery": "UNKNOWN"
            }
        }
    }
}