CVE-2026-33550 Weak cryptography in SOGo

Low 2.0 Published Updated

SOGo uses short OTPs and fails to renew them on toggle, weakening two-factor authentication security.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-33550?

CVE-2026-33550 is a low-severity vulnerability in Alinto SOGo, published on 22 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

SOGo before 5.12.5 does not renew the OTP if a user disables/enables it, and has a too short length (only 12 digits instead of the 20 recommended).

Weakness: CWE-308

Which versions are affected by CVE-2026-33550?

It affects 1 product.

Products include Alinto Sogo.

How do I fix CVE-2026-33550?

Upgrade to a fixed version.

Is CVE-2026-33550 being exploited?

There is no known exploitation of CVE-2026-33550 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-33550, GHSA-9x6p-jf26-xmx7, UBUNTU-CVE-2026-33550.

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