CVE-2026-88026
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.1
- CVSS vector
- 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
- CWE
- CWE-943
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- MongoDB C# Driver
Weakness type
Related vulnerabilities
- CVE-2026-88036 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C Driver
- CVE-2026-88034 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C++ Driver
- CVE-2026-88033 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Java Driver
- CVE-2026-88031 — GridFS data deletion via query-operator injection in file IDs in the MongoDB Go Driver
- CVE-2026-88030 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Ruby Driver
- CVE-2026-88029 — GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Python Driver
- CVE-2026-88028 — Unauthorized document disclosure via query-operator injection in polymorphic relation identifiers in MongoDB integration for Laravel
- CVE-2026-88027 — Mass deletion and overwrite of embedded documents via query-operator injection in embedded record keys in MongoDB integration for Laravel