CVE-2026-107366
HIGH
NVD
CVSS Score
8.3
Severity
HIGH
Published
Oct 20, 2026
Vendor
unknown
Description
IBM Langflow OSS 1.0.0 through 1.12.4 contains three message endpoints that perform no ownership verification. 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.