CVE-2026-114643
MEDIUM 5.3The MongoDB C# Driver writes GeoJSON extra members without checking whether their names collide with reserved GeoJSON members such as type and coordinates. An application that places user-supplied field names into these extra members can store documents with duplicate geometry fields, so the server and the driver resolve different values for the same record. Affected records can also become unreadable through the driver, interrupting application code that reads them.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 31st percentile
Impact if exploited
5.3CVSS 4.0 · MEDIUM
- ConfidentialityNone
- IntegrityLow
- AvailabilityLow
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-694: : Use of Multiple Resources with Duplicate Identifier
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 5.3 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N - MEDIUM 5.4 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - MEDIUM 5.3 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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 - MEDIUM 5.4 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
References
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108303 EUVD · EUVD-2026-108303
Technical & other
- https://jira.mongodb.org/browse/CSHARP-6179CVE record · mongodb · Updated 2026-10-22T21:25:30.085Z
NVD · CVE-2026-114643 · Updated 2026-10-23T19:45:03.547 - https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0CVE record · mongodb · Updated 2026-10-22T21:25:30.085Z
NVD · CVE-2026-114643 · Updated 2026-10-23T19:45:03.547 - https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-mqvm-xxqr-vqw5CVE record · mongodb · Updated 2026-10-22T21:25:30.085Z
NVD · CVE-2026-114643 · Updated 2026-10-23T19:45:03.547