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CVE-2025-27820

Apache HttpClient disables domain checks

A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Discovered by the Apache HttpClient team. Fixed in the 5.4.3 release.

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading
Vulnerability Details
Score
7.5
Score Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Versions
org.apache.httpcomponents.client5:httpclient5 >= 5.4-alpha1 < 5.4.3
Severity
High
Ecosystem
Publish Date
April 24, 2025
Modified Date
May 16, 2025