CVE-2026-12763
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 4.2
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS probability
- 0.15%
- CWE
- CWE-306
- Published
- 2026-09-14
- Last modified
- 2026-09-15
Affected products
- IBM Langflow OSS
Weakness type
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