cvedb.io
CVE-2026-33129
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2026-03-20T10:16:19.317 · Last modified 2026-06-17T10:36:59.780

Summary

H3 is a minimal H(TTP) framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison (!==). This allows an attacker to deduce the valid password character-by-character by measuring the server's response time, effectively bypassing password complexity protections. This issue is fixed in version 2.0.1-rc.9.

Affected products

h3 — h3

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.