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CVE-2026-71290

Apache HttpComponents Client: TLS hostname verification silently disabled on the async transport (default config, MITM) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Apache Software Foundation / Apache HttpComponents Clientaffected 5.4-alpha through 5.6.3

CWE

CWE-295

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.