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.

INFO

Published Date :

2026-04-22T07:07:21.344Z

Last Modified :

2026-04-22T16:23:59.296Z

Source :

apache
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40542 vulnerability.

Vendors Products
Apache
  • Httpclient
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40542.

URL Resource
http://www.openwall.com/lists/oss-security/2026/04/22/5 cve-icon
https://lists.apache.org/thread/tfmgv86xr0z1y096vs3z0y315t1v3o97 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-40542 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-40542 cve-icon
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CVSS Vulnerability Scoring System

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