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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-71290 Detail

Description

Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicy#BUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonate the server by presenting a valid certificate for a different domain.  Please note the classic version of HttpClient is not affected by this vulnerability.  Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2026/08/13/6 CVE
https://lists.apache.org/thread/bhf7g2zwpom2ohvwjjjlonc93br2s8vq Apache Software Foundation

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation Apache Software Foundation  

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-71290
NVD Published Date:
08/11/2026
NVD Last Modified:
08/13/2026
Source:
Apache Software Foundation