CVE-2025-27820

HIGH
2025-04-24 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:38 vuln.today
Patch Released
Mar 28, 2026 - 18:38 nvd
Patch available
CVE Published
Apr 24, 2025 - 12:15 nvd
HIGH 7.5

Tags

Information Disclosure Apache Httpclient Ontap Tools Redhat Suse

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

Analysis

A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical Context

This vulnerability is classified under CWE-295. 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 products include: Apache Httpclient, Netapp Ontap Tools.

Affected Products

Apache Httpclient, Netapp Ontap Tools.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.3
CVSS: +38
POC: 0

Vendor Status

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CVE-2025-27820 vulnerability details – vuln.today
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