{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-59879",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-07T16:40:07.982Z",
        "datePublished": "2026-07-08T15:47:24.885Z",
        "dateUpdated": "2026-07-08T19:41:12.330Z"
    },
    "containers": {
        "cna": {
            "title": "Immutable.js `List` 32-bit trie overflow → unrecoverable DoS",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-190",
                            "lang": "en",
                            "description": "CWE-190: Integer Overflow or Wraparound",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "CWE-400: Uncontrolled Resource Consumption",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-835",
                            "lang": "en",
                            "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1284",
                            "lang": "en",
                            "description": "CWE-1284: Improper Validation of Specified Quantity in Input",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.7,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/immutable-js/immutable-js/security/advisories/GHSA-v56q-mh7h-f735",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/immutable-js/immutable-js/security/advisories/GHSA-v56q-mh7h-f735"
                },
                {
                    "name": "https://github.com/immutable-js/immutable-js/commit/a1a1ee412dcaa380ab325196283d06594ffe4b84",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/immutable-js/immutable-js/commit/a1a1ee412dcaa380ab325196283d06594ffe4b84"
                },
                {
                    "name": "https://github.com/immutable-js/immutable-js/commit/f0bc997d8eb9886aff2236635aa210a95a04304a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/immutable-js/immutable-js/commit/f0bc997d8eb9886aff2236635aa210a95a04304a"
                },
                {
                    "name": "https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9"
                },
                {
                    "name": "https://github.com/immutable-js/immutable-js/releases/tag/v5.1.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/immutable-js/immutable-js/releases/tag/v5.1.8"
                }
            ],
            "affected": [
                {
                    "vendor": "immutable-js",
                    "product": "immutable-js",
                    "versions": [
                        {
                            "version": ">= 5.0.0-beta.1, < 5.1.8",
                            "status": "affected"
                        },
                        {
                            "version": "< 4.3.9",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-08T15:47:24.885Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, List#set, List#setSize, List#setIn, List#updateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 ** 30 to 2 ** 31 in setListBounds in src/List.js, causing an empty List to enter an uncatchable infinite loop, a populated List to allocate without bound until process abort, or setSize to silently wrap large values. This issue is fixed in versions 4.3.9 and 5.1.8."
                }
            ],
            "source": {
                "advisory": "GHSA-v56q-mh7h-f735",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/immutable-js/immutable-js/security/advisories/GHSA-v56q-mh7h-f735",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-08T17:51:48.441737Z",
                                "id": "CVE-2026-59879",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-08T19:41:12.330Z"
                }
            }
        ]
    }
}