JDBC LogFactory 任意类加载/构造导致潜在 RCE
在 openGauss-connector-jdbc 的 pgjdbc/src/main/java/org/postgresql/log/LogFactory.java 中，LogFactory 根据 JDBC 连接参数中的 logger 类名调用 Class.forName 加载类后，直接反射调用以 String 为参数的构造函数，再转换为 Log。缺少 asSubclass(Log.class) 校验，非 Log 实现类也会在类型检查前被实例化。因此，当攻击者可控制 JDBC URL 或连接属性中的 logger 类名，且客户端 classpath 中存在可被加载的类时，可能在客户端触发非预期的类加载与构造副作用。 此漏洞自 JDBC 1.1.0引入，影响 1.1.0 及之后的 2.x、3.x、5.x、6.x 各版本及补丁（含 6.0.0 分支最新 6.0.6），以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3，并在 7.0.0-LTS 版本修复。修复在 Class.forName 之后先执行 asSubclass(Log.class)，仅允许 Log 子类进入构造。修复pr见https://gitcode.com/opengauss/openGauss-connector-jdbc/pull/423。
CVE-2026-111440
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111440
openGauss-connector-jdbc
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "openGauss-server",
"product": "openGauss-connector-jdbc",
"versions": [
{
"status": "unaffected",
"version": "7.0.0-LTS"
},
{
"status": "affected",
"version": "1.0.0, 1.0.1, 1.1.0"
},
{
"status": "affected",
"version": "2.0.0, 2.1.0"
},
{
"status": "affected",
"version": "3.0.0-3.0.5"
},
{
"status": "affected",
"version": "3.1.0-3.1.1"
},
{
"status": "affected",
"version": "5.0.0-5.0.3"
},
{
"status": "affected",
"version": "5.1.0"
},
{
"status": "affected",
"version": "5.0.0-RC1"
},
{
"status": "affected",
"version": "6.0.0-RC1"
},
{
"status": "affected",
"version": "6.0.0-6.0.6"
},
{
"status": "affected",
"version": "7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3"
}
],
"platforms": [
"openEuler",
"Centos"
],
"collectionURL": "https://opengauss.org/zh/download/archive/?version=7.0.0-RC3",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111440
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39082 · Revision 1
- Added to Heist Feed
- Publisher date