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CVE-2026-40542: Missing critical step in authentication in Apache HttpClient 5.6 allows an attacker to cause the client to accept...

MEDIUM CVSS 0.0 Exploit Available

Published: April 22, 2026 | Last Modified: April 22, 2026

Description

Missing critical step in authentication in Apache HttpClient 5.6 allows an attacker to cause the client to accept SCRAM-SHA-256 authentication without proper mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (1 articles)

CVE Feed
CVE-2026-40542 - Apache HttpClient: SCRAM-SHA-256 mutual authentication bypass may cause the client to accept authentication without proper mutual authentication verification

References