CVE-2026-55446

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.0.19, an attacker can send a /api/v1/files/upload/ request without any authentication token/cookies and abuse a very long multipart form boundary to make the langflow app unusable for all users for an indefinite amount of time. This vulnerability is fixed in 1.0.19.

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Produits concernés

• langflow-ai langflow
• Langflow langflow

Scores CVSS

Faiblesses (CWE)

• CWE-400

Références

• https://github.com/langflow-ai/langflow/pull/3923 Issue TrackingPatch
• https://github.com/langflow-ai/langflow/security/advisories/GHSA-qwqc-p3q8-wcg9 ExploitPatchVendor Advisory
• https://github.com/langflow-ai/langflow/security/advisories/GHSA-qwqc-p3q8-wcg9 ExploitPatchVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories