Is CVE-2026-88026 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-88026?

CVE-2026-88026 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-88026

Description

Improper neutralization of regular-expression metacharacters in the LINQ query translation component of the MongoDB C# Driver can cause a caller-supplied character sequence to alter a regular-expression predicate generated by an affected application. An authenticated user who can influence such a value may cause the application to return records beyond those intended by the original filter.