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.
Published: 2026-08-27
Score: 8.6 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver
Weaknesses CWE-943
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-08-27T20:42:01.763Z

Reserved: 2026-08-26T22:14:05.297Z

Link: CVE-2026-81525

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T20:18:50.913

Modified: 2026-08-28T00:18:20.960

Link: CVE-2026-81525

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-943

    Improper Neutralization of Special Elements in Data Query Logic