{"api_version":"1","generated_at":"2026-08-07T04:18:14+00:00","cve":"CVE-2026-71433","urls":{"html":"https://cve.report/CVE-2026-71433","api":"https://cve.report/api/cve/CVE-2026-71433.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-71433","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71433"},"summary":{"title":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores","description":"LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-08-06 22:18:30","updated_at":"2026-08-06 22:18:30"},"problem_types":["CWE-200","CWE-863","CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","CWE-863 CWE-863: Incorrect Authorization"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg","name":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1","name":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c","name":"https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1","name":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/langchain-ai/langgraph/pull/8478","name":"https://github.com/langchain-ai/langgraph/pull/8478","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-71433","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71433","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"langchain-ai","product":"langgraph","version":"affected < 3.1.1","platforms":[]},{"source":"CNA","vendor":"langchain-ai","product":"langgraph-checkpoint-sqlite","version":"affected < 3.1.1","platforms":[]},{"source":"CNA","vendor":"langchain-ai","product":"langgraph-checkpoint-postgres","version":"affected < 3.1.1","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"langgraph","vendor":"langchain-ai","versions":[{"status":"affected","version":"< 3.1.1"}]},{"product":"langgraph-checkpoint-sqlite","vendor":"langchain-ai","versions":[{"status":"affected","version":"< 3.1.1"}]},{"product":"langgraph-checkpoint-postgres","vendor":"langchain-ai","versions":[{"status":"affected","version":"< 3.1.1"}]}],"descriptions":[{"lang":"en","value":"LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-06T19:03:09.362Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg"},{"name":"https://github.com/langchain-ai/langgraph/pull/8478","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/pull/8478"},{"name":"https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c"},{"name":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1"},{"name":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1"}],"source":{"advisory":"GHSA-47pj-3jcm-6whg","discovery":"UNKNOWN"},"title":"LangGraph: Namespace prefix matching crosses segment boundaries in Postgres and SQLite stores"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-71433","datePublished":"2026-08-06T19:03:09.362Z","dateReserved":"2026-08-06T16:28:51.182Z","dateUpdated":"2026-08-06T19:03:09.362Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 22:18:30","lastModifiedDate":"2026-08-06 22:18:30","problem_types":["CWE-200","CWE-863","CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","CWE-863 CWE-863: Incorrect Authorization"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"71433","Ordinal":"1","Title":"LangGraph: Namespace prefix matching crosses segment boundaries ","CVE":"CVE-2026-71433","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"71433","Ordinal":"1","NoteData":"LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchical namespaces as a dot joined string and scoped reads by matching that string as a simple prefix pattern, so a read scoped to one namespace could also match a sibling namespace whose flattened form shares the same leading characters, or a namespace label containing unescaped pattern metacharacters, allowing an authenticated caller to retrieve stored items belonging to another tenant or user through an ordinary scoped search or list namespaces call, with no crafted input required. This issue is fixed in versions 3.1.1 of langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite.","Type":"Description","Title":"LangGraph: Namespace prefix matching crosses segment boundaries "}]}}}