CVE-2026-33129
Description
A flaw was found in H3, a minimal HTTP framework. A remote attacker can exploit a Timing Side-Channel vulnerability in the requireBasicAuth function. This vulnerability arises from the use of an unsafe string comparison, allowing the attacker to deduce valid passwords character-by-character by measuring the server's response time. This effectively bypasses password complexity protections, leading to unauthorized access.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Understanding the Weakness (CWE)
Confidentiality,Access Control
Technical Impact: Read Application Data; Bypass Protection Mechanism
Frequently Asked Questions
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