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Vulnerability record · CVE-2026-81525 · published 27 August 2026

CVE-2026-81525: The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied nam…

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.

8.6 CVSS 4.0 High EPSS 0.48% · top 61.2% CWE-943 · CWE-943 Undergoing Analysis
8.6CVSS 4.0 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
28 Aug 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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Source: NIST National Vulnerability Database (record CVE-2026-81525), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.