CVE-2025-27820highCWE-295

CVE-2025-27820: high-severity vulnerability in Apache HttpComponents

Apache HttpComponents: PSL (Public Suffix List) validation bypass

Published · Updated

Follow this CVE+ Monitor Apache HttpComponents+ Monitor org.apache.httpcomponents.client5:httpclient5

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 1.0%
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Apache Software Foundation · Apache HttpComponents