CVE-2026-40542

Critical Authentication Bypass in Apache HttpClient 5.6

Apache HttpClient Vulnerability SCRAM-SHA-256 Auth Bypass

Critical Authentication Bypass in Apache HttpClient 5.6

Do Son April 23, 2026

Apache HttpClient 5.6 reveals a critical auth flaw (CVE-2026-40542) in SCRAM-SHA-256. Secure your Java microservices—upgrade to 5.6.1 immediately.

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