CVE-2026-102466
- Source
- https://cve.org/CVERecord?id=CVE-2026-102466
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102466.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-102466
- Aliases
-
- GHSA-9jxp-x3fr-ffqh
- Published
- 2026-10-15T08:15:32Z
- Modified
- 2026-10-17T02:47:30Z
- Severity
-
- 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- [none]
- Details
-
In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the Vert.x MySQL client (vertx-mysql-client) pre-allocates an array for column definitions based on a server-declared column count with no upper-bound validation. A malicious or compromised MySQL server, or an attacker with man-in-the-middle positioning, can send a crafted result set packet with an extremely large column count, causing the client to attempt a massive heap allocation. The resulting OutOfMemoryError crashes the Netty event loop thread, causing a complete denial of service for all connections and verticles in the Vert.x application.
The impacted component is io.vertx:vertx-mysql-client.
- Database specific
{ "cna_assigner": "eclipse", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102466.json" }- References
Affected packages
Git / github.com/eclipse-vertx/vertx-sql-client
Affected ranges
- Type
- GIT
- Repo
- https://github.com/eclipse-vertx/vertx-sql-client
- Events
-
IntroducedLast AffectedIntroducedLast AffectedIntroducedLast AffectedIntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "4.0.0" }, { "last_affected": "4.5.34" }, { "introduced": "5.0.0" }, { "last_affected": "5.0.12" }, { "introduced": "5.1.0" }, { "last_affected": "5.1.9" }, { "introduced": "5.2.0" }, { "last_affected": "5.2.0" } ], "source": "AFFECTED_FIELD" }
Affected versions
4.*
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.1.0.Beta1
4.1.0.CR1
4.1.0.CR2
4.1.1
4.2.0
4.2.0.Beta1
4.2.0.CR1
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.0
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.5.0
4.5.1
4.5.10
4.5.11
4.5.12
4.5.13
4.5.14
4.5.15
4.5.16
4.5.17
4.5.18
4.5.19
4.5.2
4.5.20
4.5.21
4.5.22
4.5.23
4.5.24
4.5.25
4.5.26
4.5.27
4.5.28
4.5.29
4.5.3
4.5.30
4.5.31
4.5.32
4.5.33
4.5.34
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
5.*
5.0.0
5.0.1
5.0.10
5.0.11
5.0.12
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.2.0