PT-2026-34264

CVE-2026-40542

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Published

2026-04-22

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Updated

2026-10-12

Description by

CVSS 3.1
9.8
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Apache HttpClient version 5.6
Description A missing critical step in authentication allows an attacker to cause the client to accept SCRAM-SHA-256 authentication without proper mutual authentication verification.
Recommendations Upgrade to version 5.6.1.
Exploitability
Exploit
Fix
Researchers
Vendors
Affected products
Related identifiers
GHSA-V468-QCJX-R72W
CLEANSTART-2026-AM39668
ECHO-F0BA-E710-DC08
RHLW-2026-2A7B95611000D6B5
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