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CVE-2026-96745

PHP object injection via unsuppressible __pclass class inference in command monitoring events

CVSS 4.0 6.3 MEDIUMCVSS 3.1 5.6 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-96745

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-96745

Published

PHP Driver

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "MongoDB",
                    "product": "PHP Driver",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "1.21.10",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "2.0.0",
                            "lessThan": "2.1.10",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "2.2.0",
                            "lessThan": "2.5.3",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON