CVE-2026-81525
Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-943 |
| Vendor | mongodb |
| Product | php driver |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 27, 2026 |
| Last Updated | Aug 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
MongoDB / PHP Driver
1.0.0 < 2.4.1