What’s Vulnerable › Vulnerabilities
CVE-2026-13445: Langflow is affected by remote code execution, denial of service, path traversal, and exposed credentials due to multiple unauthenticated and insufficiently authorized API endpoints
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-17 · updated 2026-10-24
- Weakness: CWE-639
Description
IBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user's uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker's workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker's namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach). This breaks the storage ownership boundary between users.
Affected products
- IBM Langflow OSS: from 1.0.0 before 1.10.2 — fixed in 1.10.2
How to fix
Upgrade to a fixed version: IBM Langflow OSS 1.10.2. Check the vendor advisory for mitigations.
References
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