CVE-2026-105638 Plane - Authentication Bypass

Plane < 1.4.0 contains an authentication bypass caused by insufficient OTP verification and lack of rate limiting in magic-code email login, letting attackers brute force OTP codes without lockout, exploit requires no special privileges.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.38% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
5 October 2026
Updated
15 October 2026
Weakness
CWE-307

Vendor fix

Upgrade to version 1.4.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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