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TI-2026-82211 Aliases CVE-2026-118667GHSA-3fx2-cqw9-xr3c

Path traversal in LangGraph SDK v3 streaming helpers

Priority LOW 20CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 6 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-22 and the CVSS impact.

Summary

LangGraph Python SDK (langgraph-sdk) from 0.4.0 before 0.4.6 and langgraph from 1.2.3 before 1.2.14 are affected when RemoteGraph v3 streaming uses an affected langgraph-sdk version. The synchronous and asynchronous v3 stream get_tree and _fetch_state helpers place caller-controlled assistant_id and thread_id values into authenticated GET request paths without encoding them, which enables path traversal (CWE-22). Relative path segments are normalized into another readable path on the configured server while authentication headers are retained. A remote attacker with low privileges can read another path on that server.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd percentileScored 2026-11-07
Fix Partial langgraph (langchain-ai): 1.2.14langgraph-sdk (langchain-ai): 0.4.6+2 more productsRed Hat: 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
langchain-ailanggraph1.2.3 to before 1.2.141.2.14Patch availableCNA
langchain-ailanggraph-sdk0.4.0 to before 0.4.60.4.6Patch availableCNA
—langgraph-sdk (PyPI)0.4.0 to before 0.4.60.4.6Patch availableGHSA-3fx2-cqw9-xr3c
—langgraph (PyPI)1.2.3 to before 1.2.141.2.14Patch availableGHSA-3fx2-cqw9-xr3c
  • langgraph Vendorlangchain-ai Affected 1.2.3 to before 1.2.14 Fixed in 1.2.14 Patch available CNA
  • langgraph-sdk Vendorlangchain-ai Affected 0.4.0 to before 0.4.6 Fixed in 0.4.6 Patch available CNA
  • langgraph-sdk (PyPI) Vendor— Affected 0.4.0 to before 0.4.6 Fixed in 0.4.6 Patch available GHSA-3fx2-cqw9-xr3c
  • langgraph (PyPI) Vendor— Affected 1.2.3 to before 1.2.14 Fixed in 1.2.14 Patch available GHSA-3fx2-cqw9-xr3c

Remediation

Upgrade langgraph-sdk to 0.4.6 and langgraph to 1.2.14. Red Hat lists Ansible Automation Orchestrator 2026, Migration Toolkit for Applications 8, OpenShift Lightspeed and Red Hat OpenShift AI (RHOAI) as affected with no fix available, and Exploit Intelligence and Red Hat Ansible Automation Platform 2 as affected with no fix planned.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA langgraph (langchain-ai) Fixed in 1.2.14
  • Fix · CNA langgraph-sdk (langchain-ai) Fixed in 0.4.6
  • Fix · GHSA-3fx2-cqw9-xr3c langgraph-sdk (PyPI) Fixed in 0.4.6 Advisory →
  • Fix · GHSA-3fx2-cqw9-xr3c langgraph (PyPI) Fixed in 1.2.14 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Ansible Automation Orchestrator 2026AffectedNo fix yet: Fix deferred
Exploit IntelligenceAffectedNo fix planned: Out of support scope
Migration Toolkit for Applications 8AffectedNo fix yet: Fix deferred
OpenShift LightspeedAffectedNo fix yet: Fix deferred
Red Hat Ansible Automation Platform 2AffectedNo fix planned: Out of support scope
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118667
  2. 2026-10-28 Alias added: GHSA-3fx2-cqw9-xr3c
  3. 2026-10-28 Fix available: PyPI/[email protected], PyPI/[email protected] · GHSA-3fx2-cqw9-xr3c
  4. 2026-10-28 CVSS score added · GHSA-3fx2-cqw9-xr3c
  5. 2026-10-28 Weakness changed · GHSA-3fx2-cqw9-xr3c
  6. 2026-10-28 6 new references · GHSA-3fx2-cqw9-xr3c
  7. 2026-10-29 CISA SSVC decision points changed
  8. 2026-10-30 Affected versions changed · Red Hat
  9. 2026-10-30 CVSS score added · Red Hat

References

Other 6

  • TI-2024-31340 langchain_experimental (aka LangChain Experimental) 0.1.17 through 0.3.0 for LangChain… CVSS 3.1CRITICAL 9.8
  • TI-2023-20724 An issue in langchain langchain-ai v.0.0.232 and before allows a remote attacker to… CVSS 3.1CRITICAL 9.8
  • TI-2023-20706 An issue in LanChain-ai Langchain v.0.0.245 allows a remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
  • TI-2023-20166 An issue in Harrison Chase langchain v.0.0.194 and before allows a remote attacker to… CVSS 3.1CRITICAL 9.8
  • TI-2023-20136 An issue in LangChain v.0.0.231 allows a remote attacker to execute arbitrary code via the prompt parameter. CVSS 3.1CRITICAL 9.8
  • TI-2023-18185 An issue in langchain v.0.0.171 allows a remote attacker to execute arbitrary code via a… CVSS 3.1CRITICAL 9.8
See all 75 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences