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TI-2026-76998 Aliases CVE-2026-111767GHSA-22jm-h49p-29qw

Cross-session access to tasks in MCP TypeScript SDK

Priority MEDIUM 43CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · Low · Low
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-639.

Summary

The MCP TypeScript SDK, published as the @modelcontextprotocol/sdk npm package, is affected from 1.24.0 before 1.32.0. Its experimental tasks feature (taskStore) does not check which session created a task (CWE-639). A client can list, read and cancel tasks created by other clients that share one InMemoryTaskStore.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.24.0 to before version 1.32.0, the experimental tasks feature (taskStore) did not check which session created a task. Clients sharing one InMemoryTaskStore could list, read and cancel each other's tasks. This issue has been patched in version 1.32.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00345 28th percentileScored 2026-11-07
Fix Partial typescript-sdk (modelcontextprotocol): 1.32.0@modelcontextprotocol/sdk (npm): 1.32.0Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
MLflowtypescript-sdk1.24.0 to before 1.32.01.32.0Patch availableCNA
—@modelcontextprotocol/sdk (npm)1.24.0 to before 1.32.01.32.0Patch availableGHSA-22jm-h49p-29qw
  • typescript-sdk VendorMLflow Affected 1.24.0 to before 1.32.0 Fixed in 1.32.0 Patch available CNA
  • @modelcontextprotocol/sdk (npm) Vendor— Affected 1.24.0 to before 1.32.0 Fixed in 1.32.0 Patch available GHSA-22jm-h49p-29qw

Remediation

Upgrade the MCP TypeScript SDK (modelcontextprotocol typescript-sdk and @modelcontextprotocol/sdk npm package) to version 1.32.0. Red Hat lists Red Hat Ansible Automation Platform 2, Red Hat OpenShift AI (RHOAI) and Red Hat OpenShift Dev Spaces as affected, with no fix plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA typescript-sdk (modelcontextprotocol) Fixed in 1.32.0
  • Fix · GHSA-22jm-h49p-29qw @modelcontextprotocol/sdk (npm) Fixed in 1.32.0 Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2AffectedNo fix yet
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Red Hat OpenShift Dev SpacesAffectedNo fix yet
Not affected: 3 products
  • Migration Toolkit for Applications 8
  • Red Hat Enterprise Linux 10
  • Red Hat Hardened Images

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-111767
  2. 2026-10-21 Alias added: GHSA-22jm-h49p-29qw
  3. 2026-10-21 Fix available: npm/@modelcontextprotocol/[email protected] · GHSA-22jm-h49p-29qw
  4. 2026-10-21 CVSS score added · GHSA-22jm-h49p-29qw
  5. 2026-10-21 Weakness changed · GHSA-22jm-h49p-29qw
  6. 2026-10-21 4 new references · GHSA-22jm-h49p-29qw
  7. 2026-10-21 Affected versions changed · Red Hat
  8. 2026-10-21 CVSS score added · Red Hat
  9. 2026-10-23 Affected versions changed · Red Hat
  10. 2026-10-23 CVSS score changed · Red Hat
  11. 2026-11-05 Affected versions changed · Red Hat

References

Other 4

  • TI-2026-46366 Server-side request forgery in mlflow KEVCVSS 3.1CRITICAL 9.3
  • TI-2023-03518 Absolute Path Traversal in mlflow/mlflow CVSS 3.1CRITICAL 10.0
  • TI-2023-01113 Path Traversal: '\..\filename' in mlflow/mlflow CVSS 3.1CRITICAL 9.8
  • TI-2025-31759 Redis Lua Use-After-Free may lead to remote code execution CVSS 3.1CRITICAL 10.0
  • TI-2026-81527 Code execution via scorer deserialization in MLflow servers CVSS 3.1CRITICAL 9.8
  • TI-2025-14028 Command Injection in mlflow/mlflow CVSS 3.1CRITICAL 10.0
See all 175 →

Sources

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