CVE-2025-27820
April 24, 2025
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
Affected Packages
https://github.com/apache/httpcomponents-client.git (GITHUB):
Affected version(s) >=rel/v5.4 <rel/v5.4.3Fix Suggestion:
Update to version rel/v5.4.3org.apache.httpcomponents.client5:httpclient5 (JAVA):
Affected version(s) >=5.4 <5.4.3Fix Suggestion:
Update to version 5.4.3org.apache.httpcomponents.client5:httpclient5 (JAVA):
Affected version(s) >=5.4-alpha1 <5.4.3Fix Suggestion:
Update to version 5.4.3Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
0.07
