Is CVE-2026-107366 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-107366?

CVE-2026-107366 has a CVSS v3 severity of HIGH (8.3).

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CVE-2026-107366

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.