CVE-2026-33129

The CVE-2026-33129 issue affects the H3 minimal HTTP framework. A Timing Side-Channel exists in the requireBasicAuth function due to unsafe string comparison (!==), enabling an attacker to deduce the valid password character-by-character by measuring response times and bypass password protections...

CVE-2026-33129: Observable Timing Discrepancy

H3 is a minimal HTTP 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...

PT-2026-26193

Summary A Timing Side-Channel vulnerability exists 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...