CVE-2026-12763 — Vulnerability intelligence

langflow — langflow

Published: 2026-09-14T21:17:00.440

CVSS

4.2

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-12763
• Patch, Vendor Advisory