A vulnerability was found in the Hot Rod client. This security issue occurs as the Hot Rod client does not enable hostname validation when using TLS, possibly resulting in a man-in-the-middle (MITM) attack.
CVE-2023-4586
Score 5.3 from GitHub Security Advisory published 2023-10-04. NVD baseline CVSS 7.4; sources differ by 2.1.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.4
- EG Score
- 5.3(medium)
- EPSS
- 36.0%
- KEV
- Not listed
Published
October 4, 2023
Last Modified
June 17, 2026
References (6)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2023:7676
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-4586
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2235564
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7676
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4586
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2235564
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | hotrod-client | 2023-12-06 | redhat |
| maven | io.netty:netty-handler | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| io.netty:netty-handler | 4.1.0.Final ... 4.1.99.Final (100 versions) | — | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 8× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-24 16:32 UTCEG score recompute
- 2026-05-24 16:32 UTCVendor advisory
- 2026-05-24 16:32 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2023-4586?
When was CVE-2023-4586 disclosed?
Is CVE-2023-4586 actively exploited?
What is the CVSS score of CVE-2023-4586?
How do I remediate CVE-2023-4586?
Dependency Blast Radius
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