Langflow is affected by security vulnerabilities in Model Context Protocol features
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP `resources/read` request with a URL-encoded path traversal sequence in the filename.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
IBM Langflow OSS — ibm.com/support/pages/node/7282147
7 records Highest priority Priority MEDIUM 4 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-14453 Langflow is affected by OS Command Injection in Model Context Protocol featuresPriority MEDIUM 42
- TI-2026-14457 Langflow is affected by security vulnerabilities in Model Context Protocol featuresPriority MEDIUM 41
- TI-2026-14451 Langflow is affected OS Command Injection in Model Context Protocol featuresPriority MEDIUM 41
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7646
- 2026-10-03 Alias added: GHSA-x37c-x545-wrmw
References
More IBM vulnerabilities
- TI-2026-08085 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation KEVCVSS 3.1CRITICAL 9.8
- TI-2022-23774 IBM Aspera Faspex code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2020-03794 Improper authentication in IBM Data Risk Manager KEVCVSS 3.1CRITICAL 9.8
- TI-2019-03441 Code injection in IBM Planning Analytics KEVCVSS 3.1CRITICAL 9.8
- TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-7646 · CVE Program
- CVE-2026-7646 · NVD
- FIRST EPSS
- GHSA-x37c-x545-wrmw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences