CVE-2026-107366: Langflow OSS 1.0.0 through 1.12.4

Affected technology

Langflow OSS · 1.0.0 through 1.12.4
IBM

Description’s affected range: through 1.12.4

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID. Vendor/CNA’s CVSS 3.1 assessment (base score 8.3/10) rates confidentiality and integrity impact as high; availability impact as low.