CVE-2026-40542

CVSS Score & Metrics

Base Score

7.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L                                    

Vulnerability 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.

Vulnerability Details

Published Date

April 22, 2026

Last Modified

April 22, 2026

CWE ID

CWE-304

Source

NVD

Vendor

Apache Software Foundation

Product

Apache HttpClient

External References

https://lists.apache.org/thread/tfmgv86xr0z1y096vs3z0y315t1v3o97

CVSS Score & Metrics

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