CVE-2026-102464
Quick assessment
Affected
Eclipse Foundation Eclipse Vert.x
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Eclipse Vert.x 的 [4.0.0, 4.5.34]、[5.0.0, 5.0.12]、[5.1.0, 5.1.9] 或 [5.2.0, 5.2.0] 版本中，Eclipse Vert.x MQTT（vertx-mqtt）模块的 MqttClient 会将来自代理（broker）的所有传入 QoS 2 PUBLISH 消息存储在一个内部映射（qos2inbound）中，等待相应的 PUBREL 数据包完成 QoS 2 握手流程。该内部映射没有大小限制；maxInflightQueue 选项仅对外部发布
Possible ATT&CK Techniques 1 AI
T1496 · Resource HijackingAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x | 4.0.0≤ 4.5.34 |
affected |
5.0.0≤ 5.0.12 |
affected | ||
5.1.0≤ 5.1.9 |
affected | ||
5.2.0 |
affected |
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I. Basic Information for CVE-2026-102464
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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 Eclipse Vert.x MQTT (vertx-mqtt) MqttClient stores every inbound QoS 2 PUBLISH message received from the broker in an internal map (qos2inbound) while awaiting the corresponding PUBREL packet to complete the QoS 2 handshake. This map has no size limit; the maxInflightQueue option is enforced only on the outbound publish path and does not constrain inbound message retention.
A malicious or compromised MQTT broker can exploit this by sending QoS 2 PUBLISH messages with distinct packet identifiers and withholding the PUBREL responses. Each incomplete handshake causes the client to retain the full publish message (topic, payload, and metadata) indefinitely, leading to unbounded memory growth in the Vert.x process. This can degrade the MQTT-consuming application or cause out-of-memory termination.
The impacted component is io.vertx:vertx-mqtt.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x | 4.0.0 ~ 4.5.34 | - |
|
II. Public POCs for CVE-2026-102464
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-102464 (2)
Same Patch Batch · Eclipse Foundation · 2026-10-15 · 25 CVEs total
| CVE-2026-19863 | 9.3 CRITICAL | EthereumAuthenticator未授权访问漏洞 |
| CVE-2026-102469 | 9.2 CRITICAL | CVE-2026-102469 |
| CVE-2026-18660 | 8.8 HIGH | Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames |
| CVE-2026-18661 | 8.8 HIGH | Eclipse Jetty 多个版本 Jakarta安全约束绕过漏洞 |
| CVE-2026-102467 | 8.7 HIGH | Vert.x 4.0.0-5.2.0空字节限制致DDoS |
| CVE-2026-102475 | 8.7 HIGH | Eclipse Vert.x 5.x HTTP代理内存溢出漏洞 |
| CVE-2026-102461 | 8.7 HIGH | Eclipse Vert.x DoS漏洞：JSON Schema验证算法缺陷 |
| CVE-2026-102477 | 8.7 HIGH | Vert.x gRPC-server配置压缩限制绕过致压缩炸弹攻击 |
| CVE-2026-76184 | 8.2 HIGH | Eclipse Jetty HttpClient重定向认证头泄露漏洞 |
| CVE-2026-77711 | 8.2 HIGH | Jetty HttpClient代理凭据泄露漏洞 |
| CVE-2026-102465 | 8.2 HIGH | Vert.x MySQL Client越界数组分配致OOM漏洞 |
| CVE-2026-103224 | 8.2 HIGH | Vert.x MySQL客户端多个版本存在OOM漏洞 |
| CVE-2026-103223 | 8.2 HIGH | Eclipse Vert.x 4-5 PostgreSQL客户端缓冲区溢出致OOM |
| CVE-2026-102463 | 8.2 HIGH | Eclipse Vertx多版本vertx-pg-client数组解码内存耗尽漏洞 |
| CVE-2026-102466 | 8.2 HIGH | Eclipse Vert.x MySQL客户端拒绝服务漏洞 |
| CVE-2026-102462 | 8.2 HIGH | Vert.x MSSQL Client多个版本OOM漏洞 |
| CVE-2026-76182 | 6.9 MEDIUM | Jetty TryPathsHandler/Filter路径解析逻辑漏洞 |
| CVE-2026-18662 | 6.9 MEDIUM | Jetty安全组件URL模式为空时约束冲突漏洞 |
| CVE-2026-18659 | 6.9 MEDIUM | Unauthenticated authorization bypass in ConstraintSecurityHandler - HTTP method-omission m |
| CVE-2026-19864 | 5.6 MEDIUM | Eclipse Jetty会话认证凭据明文存储漏洞 |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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