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CVE-2025-27820 Apache HttpClient

Affected softwareApache HttpClient
Severity7.5 High CVSS 3.1
Fixed in5.4.3
WeaknessCWE-295
Published24 Apr 2025
Updated17 Jun 2026

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

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published a year ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.97% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: apache/httpcomponents-client #574.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/apache/httpcomponents-client/pull/574 : a pull request: the change under review

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update October 2026 ↗ CPU 2026-Q4 Oracle Database Server / Oracle SQLcl (Apache HttpComponents) (19.3-19.32, 21.3-21.23, 23.4.0-23.26.3)
Oracle Critical Patch Update April 2026 ↗ CPU 2026-Q2 Oracle Financial Services Applications / Installer (Apache HttpClient) (8.1.2.10, 8.1.2.11)
Oracle Financial Services Applications / Platform (Apache HttpClient) (8.0.7.9, 8.0.8.7, 8.1.2.5)
Oracle Critical Patch Update July 2025 ↗ CPU 2025-Q3 Oracle GoldenGate / Java Delivery (Apache HttpClient) (23.4-23.6)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Database Server Oracle SQLcl (Apache HttpComponents) 19.3-19.32, 21.3-21.23, 23.4.0-23.26.3
Oracle Financial Services Applications Installer (Apache HttpClient) 8.1.2.10, 8.1.2.11 8.1.2.10 · 8.1.2.11
Oracle Financial Services Applications Platform (Apache HttpClient) 8.0.7.9, 8.0.8.7, 8.1.2.5 8.0.7.9 · 8.0.8.7 · 8.1.2.5
Oracle GoldenGate Java Delivery (Apache HttpClient) 23.4-23.6

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.httpcomponents.client5:httpclient5 5.4-alpha1 5.4.3 unbounded

Products and versions

3 products, 3 version entries
SourceVendorProductSchemeAffected versions
nvd apache httpclient generic ≥ 5.4 and < 5.4.3
nvd netapp ontap tools generic 10
osv org.apache.httpcomponents.client5 httpclient5 generic ≥ 5.4 and < 5.4.3

References

URLTags
https://github.com/apache/httpcomponents-client/pull/574 pr
https://github.com/apache/httpcomponents-client/pull/621 WEB
https://github.com/apache/httpcomponents-client PACKAGE
https://hc.apache.org/httpcomponents-client-5.4.x/index.html WEB
https://lists.apache.org/thread/55xhs40ncqv97qvoocok44995xp5kqn8 WEB
https://security.netapp.com/advisory/ntap-20250516-0003 WEB
https://security.netapp.com/advisory/ntap-20250516-0003/ Third Party Advisory

Timeline

Published2025-04-24By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.