CVE-2026-33129

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...

CVE-2026-33129 h3 has an observable timing discrepancy in basic auth utils

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...

GHSA-26F5-8H2X-34XH h3 has an observable timing discrepancy in basic auth utils

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...

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...