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Response snapshot Oct 27, 2026, 04:52 UTC

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VulnerabilityCVE-2026-111440

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...

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.

At a glance

Exploited
Not known
Severity
7.0 High (CVSS 3.1)
Chance of exploitation
0.2% in the next 30 days
Sources
1 source

What to do

Check the vendor advisory for affected versions and fixes.

Read NVD CVE-2026-111440 (opens a new tab)

What happened

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。

Scores and how they were measured

CVSS base severity

7.0

Version 3.1As of

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

0.2%

Scored Percentile 8.1%

Model and measurement source (opens a new tab)

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    NVD CVE-2026-111440 (opens a new tab)

    NVD record: description, CVSS (the CNA score is preferred), affected products, and publication date. Not evidence of exploitation.

    Published Checked

  2. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

  3. Primary source

    FIRST measured EPSS score (opens a new tab)

    Measured EPSS probability and percentile for CVE-2026-111440, scored 2026-10-26. This is a model estimate, not proof of exposure.

    Published Checked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 19). 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... (CVE-2026-111440). https://kevwire.com/record/CVE-2026-111440

MLA

"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... (CVE-2026-111440)." KEVWire, 19 Oct. 2026, kevwire.com/record/CVE-2026-111440.

Chicago

KEVWire. "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... (CVE-2026-111440)." Last modified October 19, 2026. https://kevwire.com/record/CVE-2026-111440.

Evidence summary (plain text)

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... (Oct 19, 2026).
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。
CVSS 7.0 (version 3.1; evidence as of Oct 19, 2026; https://nvd.nist.gov/vuln/detail/CVE-2026-111440).
EPSS 0.2% for the following 30 days, scored Oct 26, 2026 (https://api.first.org/data/v1/epss?cve=CVE-2026-111440&date=2026-10-26).
Sources:
NVD CVE-2026-111440: https://nvd.nist.gov/vuln/detail/CVE-2026-111440
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?pubStartDate=2026-10-12T13:35:55.142Z&pubEndDate=2026-10-26T13:35:55.142Z&resultsPerPage=500&startIndex=5000
FIRST measured EPSS score: https://api.first.org/data/v1/epss?cve=CVE-2026-111440&date=2026-10-26
Record ID: CVE-2026-111440.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 01:40 UTC. Ingestion is not an independent editorial investigation.

NVD status: Deferred. Publication in the NVD is not evidence of exploitation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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