CVE-2025-27820
7.5 · HIGHOverview
CVE-2025-27820 is a high-severity vulnerability affecting apache httpclient. It was published on April 24, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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
Remediation
Check the references section for vendor advisories and patches from apache. Update httpclient to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | httpclient | >= 5.4, < 5.4.3 | Affected |
Frequently Asked Questions
What is CVE-2025-27820?
CVE-2025-27820 is a high-severity vulnerability affecting apache httpclient. It was published on April 24, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-27820?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-27820?
Check the references section for vendor advisories and patches from apache. Update httpclient to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-27820?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-27820 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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