CVE-2026-44196 Pingvin Share X: TOTP Authentication Bypass via Password-only Login

Critical 9.1 Published Updated

Attackers with valid credentials can bypass TOTP two-factor authentication to access accounts in Pingvin Share X.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-44196?

CVE-2026-44196 is a critical authentication bypass vulnerability in smp46 pingvin-share-x, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Pingvin Share X is a secure and easy self-hosted file sharing platform. From 1.14.1 to 1.16.2, a critical authentication bypass vulnerability allows an attacker who has obtained a valid username and password to skip the second-factor authentication (TOTP) requirement entirely. Although, an attacker still needs the user's password to reach this stage. This vulnerability is fixed in 1.16.3.

Weakness: CWE-697, CWE-287

Which versions are affected by CVE-2026-44196?

How do I fix CVE-2026-44196?

No fix has been published for CVE-2026-44196 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-44196 being exploited?

There is no known exploitation of CVE-2026-44196 in the wild and no public exploit code.

Sources

Also known as GHSA-j679-vp39-qwqq.

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