CVE-2026-105638

Critical

Description

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, or lock the email address. The verifier extends django.views.View rather than DRF's APIView, so the configured AnonRateThrottle limit does not apply. The middleware stack also contains no Django-level rate limiter such as django-ratelimit, django-axes, or an IP-throttling middleware. This vulnerability is fixed in 1.4.0.

SeverityCritical
CVSS9.1
Exploit probability—
ProductPlane
PublishedOct 5, 2026
First seenOct 5, 2026
Weakness typeCWE-307CWE-307

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
makeplane plane< 1.4.0—

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CVE-2026-105638 · Plane · Dark Radar