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TI-2026-66144 Aliases CVE-2026-104873GHSA-fvww-7h3r-vfhp

LangGraph SDK custom auth silently ignores actions= on resource decorators

Priority LOW 33CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 2 fixed, 5 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.

Summary

LangGraph Python SDK is used to connect to running LangGraph API servers, manage assistants, threads and stream runs from Python applications. From 0.1.45 until 0.4.4, the langgraph-sdk resource-scoped authorization decorators @auth.on.threads, @auth.on.assistants, and @auth.on.crons ignore the actions argument and register the selected handler for every action on the resource. Because that wildcard resource handler is selected before broader fallback handlers, an authenticated user may bypass fallback action, ownership, or permission checks and read, update, or delete another user's resource. Only Python deployments using actions on the affected decorators are vulnerable, and a deployment remains protected when the selected handler independently enforces all required checks for every action it receives. This issue is fixed in version 0.4.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Partial langgraph (langchain-ai): 0.4.4langgraph-sdk (PyPI): 0.4.4Red Hat: 2 advisoriesRed Hat: 2 fixed, 5 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-ailanggraph0.1.45 to before 0.4.40.4.4Patch availableCNA
—langgraph-sdk (PyPI)0.1.45 to before 0.4.40.4.4Patch availableGHSA-fvww-7h3r-vfhp
  • langgraph Vendorlangchain-ai Affected 0.1.45 to before 0.4.4 Fixed in 0.4.4 Patch available CNA
  • langgraph-sdk (PyPI) Vendor— Affected 0.1.45 to before 0.4.4 Fixed in 0.4.4 Patch available GHSA-fvww-7h3r-vfhp

Remediation

  • Fix · CNA langgraph (langchain-ai) Fixed in 0.4.4
  • Fix · GHSA-fvww-7h3r-vfhp langgraph-sdk (PyPI) Fixed in 0.4.4 Advisory →

Red Hat 2 advisories

  • RHSA-2026:86891 Released 2026-10-21 · Red Hat rating Critical
    RHOAI 3.5.2 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.5 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9 +47
  • RHSA-2026:84734 Released 2026-10-19 · Red Hat rating Critical
    RHOAI 3.4.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Ansible Automation Orchestrator 2026AffectedNo fix yet
Exploit IntelligenceAffectedNo fix yet
Migration Toolkit for Applications 8AffectedNo fix yet
OpenShift LightspeedAffectedNo fix yet
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet
Red Hat OpenShift AI 3.4Fixed RHSA-2026:84734
Red Hat OpenShift AI 3.5Fixed RHSA-2026:86891
Not affected: 3 products
  • Red Hat Ansible Automation Platform 2
  • Red Hat OpenShift AI 3.4
  • Red Hat OpenShift AI 3.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-104873
  2. 2026-10-04 Priority changed: MEDIUM → LOW
  3. 2026-10-05 CISA SSVC decision points changed
  4. 2026-10-06 Alias added: GHSA-fvww-7h3r-vfhp
  5. 2026-10-06 Fix available: PyPI/[email protected] · GHSA-fvww-7h3r-vfhp
  6. 2026-10-06 CVSS score added · GHSA-fvww-7h3r-vfhp
  7. 2026-10-06 Weakness changed · GHSA-fvww-7h3r-vfhp
  8. 2026-10-06 5 new references · GHSA-fvww-7h3r-vfhp
  9. 2026-10-06 Affected versions changed · Red Hat
  10. 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
  11. 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
  12. 2026-10-22 Fix available: RHSA-2026:86891 · Red Hat
  13. 2026-10-22 Fix available: Red Hat OpenShift AI 3.5 · Red Hat

References

Advisory 1

Other 4

  • 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