CVE-2026-108163: Pingvin Share X ineffective rate limiting in authentication

CVE-2026-108163 · Severity: medium · CVSS 6.5 · Published 2026-10-10

Pingvin Share X is a self-hosted file sharing platform that uses rate limiting to protect authentication endpoints. A unit conversion bug causes throttler timeout values to be interpreted in milliseconds instead of seconds, making the rate limiting ineffective. Unauthenticated attackers can now brute-force passwords and TOTP codes on the sign-in and password reset endpoints.

Technologies: Smp46 Pingvin Share X. Vendors: Smp46.

Quick answers

Is CVE-2026-108163 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-108163 being exploited in the wild.
How severe is CVE-2026-108163?
Medium severity, with a CVSS score of 6.5, published 10 October 2026.
Which products and versions are affected?
Smp46 Pingvin Share X before 1.22.0.
Is there a fix for CVE-2026-108163?
Yes: fixed in 1.22.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-108163 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-108163?
Check whether you run Smp46 Pingvin Share X at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 1.22.0

Technical details

The rate limiter on /api/auth/signIn, /api/auth/signIn/totp, and /api/auth/resetPassword endpoints uses a Throttle decorator with TTL values specified in seconds, but the throttler library interprets them as milliseconds, resulting in a 1000x shorter blocking window. This allows unauthenticated attackers to send effectively unthrottled brute-force requests without authentication requirements. The fix updates the TTL values to the correct millisecond scale.

Affected products

  • smp46 Pingvin Share X before 1.22.0

Timeline

  • 2026-10-10: disclosed

References

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