Vulnerability 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Httpclient | >= 5.4, < 5.4.3 |
| Netapp | Ontap Tools | 10 |
Related Weaknesses (CWE)
References
- https://github.com/apache/httpcomponents-client/pull/574Issue TrackingPatch
- https://github.com/apache/httpcomponents-client/pull/621Issue TrackingPatch
- https://hc.apache.org/httpcomponents-client-5.4.x/index.htmlProduct
- https://lists.apache.org/thread/55xhs40ncqv97qvoocok44995xp5kqn8Mailing ListPatch
- https://security.netapp.com/advisory/ntap-20250516-0003/Third Party Advisory
FAQ
What is CVE-2025-27820?
CVE-2025-27820 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 re...
How severe is CVE-2025-27820?
CVE-2025-27820 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-27820?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Httpclient, Netapp Ontap Tools.