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CVE-2026-40542

Apache HttpClient

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.

CVSS 7.3EPSS 0.45599999999999996%Risk 0.76
View source
Published
2026-04-22 08:16:12
Affected versions
<5.6.1
Type
Package
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L