Riskcovery

CVE-2026-81525

Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver

State
Published
Severity
8.6 High
Published
Aug 27, 2026
Updated
Aug 28, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.08.6 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:Nmongodb
3.18.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nmongodb

Weaknesses

  • CWE-943 Improper Neutralization of Special Elements in Data Query Logic

Affected Products

ProductVersions
PHP LibraryMongoDB
  • before 1.21.4Affected
  • 2.0.0 to before 2.4.1Affected
PHP ExtensionMongoDB
  • before 1.21.6Affected
  • 2.0.0 to before 2.4.1Affected

References

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