Home/CVE/A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host na
CVE

CVE-2025-27820

A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host na

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.

HIGH · CVSS 7.5 EPSS 0.00071
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

2
apache httpclient>= 5.4 and < 5.4.3
netapp ontap toolsall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.apache.httpcomponents.client5:httpclient5 HIGH fixed in 5.4.3
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Apr 2025 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
oracle-cpuoracle-cpu-Oracle-Database-Oracle-GoldenGate-Big-Data-and-Application-Adapters-5760--CVE-2025-27820
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
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