CVE-2026-88026
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mongodb C\# Driver
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-943CWE-943
How to fix
Update
- mongodb c\#_driver3.11.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb c\#_driver | 2.14.0 ≤ v < 3.11.2 | 3.11.2 |
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