CVE-2026-81525: Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver
High · CVSS 8.1 (CVSS 3.1)EPSS 0.49%, 42th percentilePublished Updated Assigner: mongodb
Description
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 have operations silently directed at a different storage location than the one the application intended.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · CWE-943
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
MongoDB: PHP ExtensionMongoDB: PHP Library
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/mongodb/mongo-php-driver/releases/tag/1.21.6 (opens in new tab)
- github.com/mongodb/mongo-php-driver/releases/tag/2.4.1 (opens in new tab)
- github.com/mongodb/mongo-php-library/releases/tag/1.21.4 (opens in new tab)
- github.com/mongodb/mongo-php-library/releases/tag/2.4.1 (opens in new tab)
- jira.mongodb.org/browse/PHPLIB-1927 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)