{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "1.2.15"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "3.1.3"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "3.1.2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "bfcfea554ed5c7f7be562cebf8825e911b493ab1"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "08a345637fb2bd499f69c90056a22c478a468817"
            },
            {
              "fixed": "afbe7e48b17f62e139b5c6337ab934549e6dc73b"
            },
            {
              "fixed": "1074714c260486900d9bec9b5dd48e13883dd5df"
            },
            {
              "fixed": "bfcfea554ed5c7f7be562cebf8825e911b493ab1"
            }
          ],
          "repo": "https://github.com/langchain-ai/langgraph",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6hmw-9432-67qq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115883.json"
  },
  "details": "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.",
  "id": "CVE-2026-115883",
  "modified": "2026-10-25T02:30:39.822291241Z",
  "published": "2026-10-23T21:12:34.523Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115883.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-6hmw-9432-67qq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115883"
    },
    {
      "type": "FIX",
      "url": "https://github.com/langchain-ai/langgraph/commit/bfcfea554ed5c7f7be562cebf8825e911b493ab1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/langchain-ai/langgraph/pull/9217"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores"
}