CVE-2025-27820
High
Description
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
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Httpclient
PublishedApr 24, 2025
First seenApr 24, 2025
Weakness typeCWE-295CWE-295
How to fix
Update
- apache httpclient5.4.3 or later
- org.apache.httpcomponents.client5:httpclient55.4.3 or later
Patches
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache httpclient | 5.4 ≤ v < 5.4.3 | 5.4.3 |
| netapp ontap_tools | 10 | — |
| org.apache.httpcomponents.client5:httpclient5Maven | 5.4-alpha1 ≤ v < 5.4.3 | 5.4.3 |
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