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.
Published: 2026-09-10
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Thu, 10 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Regular expression injection via unescaped characters in LINQ query translation in MongoDB C# Driver
Weaknesses CWE-943
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, '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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-09-10T18:24:21.520Z

Reserved: 2026-09-09T19:49:39.183Z

Link: CVE-2026-88026

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-10T18:18:12.887

Modified: 2026-09-10T18:18:12.887

Link: CVE-2026-88026

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses