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CVE-2026-27830— c3p0 代码问题漏洞

一分钟漏洞结论

影响对象
swaldman c3p0
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

c3p0是Steve Waldman个人开发者的一款支持高并发的开源JDBC连接池库。 c3p0 0.12.0之前版本存在代码问题漏洞，该漏洞源于反序列化不当，可能导致执行任意代码。

CVSS 8.9 · High EPSS 2.15% · P82

影响版本矩阵 1

厂商产品 版本范围状态
swaldman c3p0 < 0.12.0 affected
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一、 漏洞 CVE-2026-27830 基础信息

漏洞信息
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Vulnerability Title
c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property
来源: CVE Program / CVE List V5
Vulnerability Description
c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects "indirectly serialized" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
来源: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
来源: CVE Program / CVE List V5
Vulnerability Title
c3p0 代码问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
c3p0是Steve Waldman个人开发者的一款支持高并发的开源JDBC连接池库。 c3p0 0.12.0之前版本存在代码问题漏洞，该漏洞源于反序列化不当，可能导致执行任意代码。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
swaldman c3p0 < 0.12.0 -

二、漏洞 CVE-2026-27830 的公开POC

# POC 描述 源链接 神龙链接
AI 生成 POC 高级
Qwen3.6-35B-A3B · 8345 chars
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三、漏洞 CVE-2026-27830 的情报信息

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CVE-2026-27830 厂商安全公告 (1)

CVE-2026-27830 安全博客文章 (1)

CVE-2026-27830 厂商页面 (1)

CVE-2026-27830 其他参考 (1)

IV. Related Vulnerabilities

Same product: c3p0
Same vendor: swaldman
Same weakness: CWE-502

V. Comments for CVE-2026-27830

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