NoSQL injection via dot and dollar characters in LINQ filter field names and dictionary keys (MongoDB C# Driver)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.32 % · percentile 25 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mongodb
- NVD status
- Awaiting Analysis
Description
The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users' documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired.
Weaknesses (CWE)
- CWE-943 — Improper Neutralization of Special Elements in Data Query Logic
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 7.2 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N | mongodb |
| CVSS 3.1 | HIGH 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H | mongodb |
| CVSS 4.0 | HIGH 7.2 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · cna@mongodb.com (Secondary) |
| CVSS 3.1 | HIGH 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H | NVD · cna@mongodb.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-108315
- GCVE · GCVE-0-2026-114648
CERT-FR advisories
- CERTFR-2026-AVI-1386 — Multiples vulnérabilités dans les produits MongoDB · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| MongoDB · C# Driver | affected 2.14.0 < 3.13.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |