CVE-2026-105638 Plane: Magic-code verifier endpoint has no rate limit, enabling 6-digit OTP brute force

Plane is an open-source project management tool. Prior to 1.4.0, Plane's magic-code email login uses a six-digit numeric OTP with approximately 20 bits of entropy. The verifier has no per-code failed-attempt counter, and an incorrect code does not increment a counter, invalidate the Redis entry, ...

CVE-2026-105638

The project management tool Plane is vulnerable to a 6-digit OTP brute force attack in versions prior to 1.4.0 . The magic-code email login verifier lacks a per-code failed-attempt counter, fails to invalidate Redis entries on incorrect attempts, and does not lock email addresses. Because the ver...