CVE-2026-102476

EUVD-2026-101530
In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the Vert.x HTTP client relies on an SSL context for efficiency purpose, the key of this cache should reflect entirely the SSL semantics of the desired SSL properties. It is possible for a client to ask for an SSL context and obtain an SSL context with weaker properties, for instance a context with hostname validation and obtain a context ignoring hostname validation.



The impacted component is io.vertx:vertx-core.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
eclipseCNA
9.1 CRITICAL
NETWORK
HIGH
NONE
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
eclipsevert.x
5.0.0 ≤
𝑥
≤ 5.0.12
CNA
eclipsevert.x
5.1.0 ≤
𝑥
≤ 5.1.9
CNA
eclipsevert.x
5.2.0
CNA
References
https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-2vhw-4xwj-r38v
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/350