CVE-2026-88026
Regular expression injection via unescaped characters in LINQ query translation in MongoDB C# Driver
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 10, 2026
- Updated
- Sep 10, 2026
- Reserved
- Sep 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | mongodb |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | mongodb |
Weaknesses
- CWE-943 Improper Neutralization of Special Elements in Data Query Logic
Affected Products
| Product | Versions |
|---|---|
C# DriverMongoDB |
|
References
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