MongoDB PHP Extension vulnerabilities

Latest MongoDB PHP Extension CVEs

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1. CVE-2026-81525 Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver

   Published 2026-08-27

   High·CVSS 8.6 EPSS 0.49%

   The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied namespace identifiers before using them to construct the target namespace for database operations. An application that incorporates untrusted text into these identifiers may...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.