Vulnerability · Published May 12, 2026 · Assigned by GitHub_M

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

Critical 9.1

In plain English

A critical-severity improper authentication in pingvin-share-x from smp46. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.3%top 77.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
smp46	pingvin-share-x	>= 1.14.1, < 1.16.3

Weakness: CWE-287, CWE-697 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/smp46/pingvin-share-x/security/advisories/GHSA-j679-vp39-qwqq x_refsource_CONFIRM