CVE-2026-81522
A weakness in the MongoDB C++ Driver's handling of caller-supplied namespace identifiers allows special characters embedded in those identifiers. An application that builds a namespace identifier from untrusted input without validating it may therefore have its operation directed at a different target than intended. This can result in limited unauthorized read and write access to data belonging to another logical tenant of the affected application.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.6
- CVSS 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
- EPSS probability
- 0.27%
- CWE
- CWE-116
- Published
- 2026-08-27
- Last modified
- 2026-08-29
Affected products
- MongoDB C++ Driver
Weakness type
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