# CVE-2026-12763

## Summary

- **CVE ID:** CVE-2026-12763
- **Severity:** MEDIUM
- **CVSS Score:** 4.2 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N)
- **CWE:** CWE-306
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 15, 2026

## Description

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to access another user's MCP server context due to improper cache key isolation in the MCP Tools component.

## Affected Products

- IBM — Langflow OSS (1.0.0)

## References

- [CNA](https://www.ibm.com/support/pages/node/7286662)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.15%
- **EPSS Percentile:** 4.4

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._