CVE-2026-55446Langflow: Unauthenticated DoS through multipart form boundary file upload

Beschreibung

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.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

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