CVE-2026-102476

Critical

Description

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.

SeverityCritical
CVSS9.1
Exploit probability—
ProductEclipse Vert.x
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-295CWE-295

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Eclipse Foundation Eclipse Vert.x5.0.0 ≤ v ≤ 5.0.12, 5.1.0 ≤ v ≤ 5.1.9, 5.2.0—

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