CVE-2026-96745— PHP object injection via unsuppressible __pclass class inference in command monitoring events
Quick assessment
Affected
MongoDB PHP Driver
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.
MongoDB PHP 驱动程序的命令监控功能中存在对不可信数据的反序列化漏洞。当驱动程序构建监控事件对象时，可能会识别并处理嵌入在文档内容中的类名。如果应用程序注册了命令监控订阅者，并在数据库操作中使用了包含不可信数据的内容，则不受身份验证的控制该数据的攻击者可能导致应用程序中实现驱动程序可持久化接口的类被实例化，并以其提供的数据调用反序列化方法。最终的影响取决于应用程序中可用的类。
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I. Basic Information for CVE-2026-96745
Vulnerability Information
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Vulnerability Title
PHP object injection via unsuppressible __pclass class inference in command monitoring events
Source: CVE Program / CVE List V5
Vulnerability Description
Deserialization of untrusted data in the command monitoring support of the MongoDB PHP Driver can cause class names embedded in document content to be honored when the driver builds monitoring event objects. When an application registers a command monitoring subscriber and includes untrusted data in a database operation, an unauthenticated party who controls that data may cause an application class implementing the driver's persistable interface to be instantiated and its unserialization method invoked with the supplied data. The resulting impact depends on the classes available in the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB | PHP Driver | 0 ~ 1.21.10 | - |
|
II. Public POCs for CVE-2026-96745
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-96745 (5)
Same Patch Batch · MongoDB · 2026-09-24 · 7 CVEs total
| CVE-2026-96749 | 8.4 HIGH | Heap out-of-bounds write via signed size overflow in BSON document encoding |
| CVE-2026-96750 | 7.1 HIGH | Shell script injection via server-supplied database name in Open MongoDB shell |
| CVE-2026-96744 | 7.1 HIGH | Unauthorized cache lock takeover via expression injection in lock owner values in MongoDB |
| CVE-2026-96746 | 6.5 MEDIUM | Heap buffer overflow via mid-scan command list growth in client topology monitoring |
| CVE-2026-96748 | 6.5 MEDIUM | Connection redirection via percent-encoded delimiter injection in connection string hosts |
| CVE-2026-96747 | 5.0 MEDIUM | Forced local Unix socket connection via dot-sock KMS endpoint in client-side field encrypt |
IV. Related Vulnerabilities
Same vendor: MongoDB
-
CVE-2026-96749
Heap out-of-bounds write via signed size overflow in BSON do -
CVE-2026-96748
Connection redirection via percent-encoded delimiter injecti -
CVE-2026-96747
Forced local Unix socket connection via dot-sock KMS endpoin -
CVE-2026-96746
Heap buffer overflow via mid-scan command list growth in cli -
CVE-2026-96750
Shell script injection via server-supplied database name in
Same weakness: CWE-502
-
CVE-2026-81867
Deserialization of Untrusted Data in Application Integration -
CVE-2026-82384
Apache Roller: Unauthenticated deserialization in the XML-RP -
CVE-2026-100846
MONAI before 1.5.2 Remote Code Execution via Pickle Deserial -
CVE-2026-100845
MONAI before 1.6.0 Remote Code Execution via NumpyReader -
CVE-2026-100843
MONAI before 1.6.0 Remote Code Execution via algo_from_pickl
V. Comments for CVE-2026-96745
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