Security Advisory

CVE-2026-33129

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-20 09:41:21

Last updated 2026-03-20 19:33:49

Assigner GitHub_M

State PUBLISHED

Description

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 servers response time, effectively bypassing password complexity protections. This issue is fixed in version 2.0.1-rc.9.

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