{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-118667","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-28T17:25:37.562Z","datePublished":"2026-10-28T20:51:46.657Z","dateUpdated":"2026-10-29T18:26:03.178Z"},"containers":{"cna":{"title":"LangGraph: Unencoded identifiers in LangGraph SDK v3 streaming can redirect authenticated GET requests","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-3fx2-cqw9-xr3c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langchain-ai/langgraph/security/advisories/GHSA-3fx2-cqw9-xr3c"},{"name":"https://github.com/langchain-ai/langgraph/pull/9213","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/pull/9213"},{"name":"https://github.com/langchain-ai/langgraph/commit/d89c7e100ec6fc1512544d23b0a7c5169699ef3e","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/commit/d89c7e100ec6fc1512544d23b0a7c5169699ef3e"},{"name":"https://github.com/langchain-ai/langgraph/releases/tag/1.2.14","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/releases/tag/1.2.14"},{"name":"https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.6","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.6"}],"affected":[{"vendor":"langchain-ai","product":"langgraph","versions":[{"version":">= 1.2.3, < 1.2.14","status":"affected"}]},{"vendor":"langchain-ai","product":"langgraph-sdk","versions":[{"version":">= 0.4.0, < 0.4.6","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-28T20:51:46.657Z"},"descriptions":[{"lang":"en","value":"LangGraph Python SDK is used to connect to running LangGraph API servers, manage assistants, threads and stream runs from Python applications. From langgraph-sdk 0.4.0 until 0.4.6, and from langgraph 1.2.3 until 1.2.14 when RemoteGraph v3 streaming uses an affected langgraph-sdk version, the synchronous and asynchronous v3 stream get_tree and _fetch_state helpers interpolate caller-controlled assistant_id and thread_id values into authenticated GET request paths without using _quote_path_param. Relative path segments can therefore be normalized into another readable path on the configured server while retaining authentication headers. This issue is fixed in langgraph-sdk 0.4.6 and langgraph 1.2.14."}],"source":{"advisory":"GHSA-3fx2-cqw9-xr3c","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T18:25:51.378346Z","id":"CVE-2026-118667","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-10-29T18:26:03.178Z"}}]}}