{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115883",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-23T19:37:27.176Z",
        "datePublished": "2026-10-23T21:12:34.523Z",
        "dateUpdated": "2026-10-23T21:12:34.523Z"
    },
    "containers": {
        "cna": {
            "title": "LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-20",
                            "lang": "en",
                            "description": "CWE-20: Improper Input Validation",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-6hmw-9432-67qq",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-6hmw-9432-67qq"
                },
                {
                    "name": "https://github.com/langchain-ai/langgraph/pull/9217",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langchain-ai/langgraph/pull/9217"
                },
                {
                    "name": "https://github.com/langchain-ai/langgraph/commit/bfcfea554ed5c7f7be562cebf8825e911b493ab1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langchain-ai/langgraph/commit/bfcfea554ed5c7f7be562cebf8825e911b493ab1"
                }
            ],
            "affected": [
                {
                    "vendor": "langchain-ai",
                    "product": "langgraph",
                    "versions": [
                        {
                            "version": "< 1.2.15",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "langchain-ai",
                    "product": "langgraph-checkpoint-postgres",
                    "versions": [
                        {
                            "version": "< 3.1.3",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "langchain-ai",
                    "product": "langgraph-checkpoint-sqlite",
                    "versions": [
                        {
                            "version": "< 3.1.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-23T21:12:34.523Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "LangGraph checkpoint savers provide Postgres- and SQLite-backed state persistence for LangGraph workflows and agents. Prior to langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2, PostgresStore, AsyncPostgresStore, SqliteStore, and AsyncSqliteStore flatten namespace labels with \".\".join(namespace), while BaseStore validates labels only for put and aput. Unvalidated dotted labels passed through get, search, delete, list_namespaces, their asynchronous equivalents, or direct batch and abatch operations can resolve to another tenant's stored namespace, allowing cross-namespace reads, overwrites, or deletion. InMemoryStore is not affected because it compares namespace tuples. This issue is fixed in langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2."
                }
            ],
            "source": {
                "advisory": "GHSA-6hmw-9432-67qq",
                "discovery": "UNKNOWN"
            }
        }
    }
}