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  4. CVE 2026 114643 duplicate geometry fields via unvalidated geojson
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-114643

Duplicate geometry fields via unvalidated GeoJSON extra membersCVE-2026-114643

Answer in brief

CVE-2026-114643 records a Medium severity (CVSS 5.3) vulnerability in Duplicate geometry fields via unvalidated GeoJSON extra members. The current sources do not mark it as known exploited. The current feed maps MongoDB/C# Driver (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 22, 2026Updated Oct 22, 2026Source checked Oct 22, 2026First seen by HOL Oct 22, 2026Material review Oct 22, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps MongoDB/C# Driver (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
MongoDB/C# Drivergeneric>=1.8.0 <3.13.03.13.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for MongoDB/C# Driver.
  2. 2Review the reported fix. Update MongoDB/C# Driver to 3.13.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 22, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencejira.mongodb.org
Upstream source description

The 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Memory-exhaustion denial of service via unbounded symbol interning during BSON/JSON deserializationSame mongodb/c# driver package
  • NoSQL command injection via mismatched raw BSON length prefix written verbatim to the wireSame mongodb/c# driver package
  • NoSQL operator injection via unvalidated replacement document in findOneAndReplaceSame mongodb/c# driver package
  • NoSQL injection via dot and dollar characters in LINQ filter field names and dictionary keysSame mongodb/c# driver package
  • Authentication bypass via issuer-and-serial-only certificate equality in shared cluster cacheSame mongodb/c# driver package
  • Plaintext exposure of encrypted fields via ANSI code-page corruption of database nameSame mongodb/c# driver package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-694
Source
CVE List V5
Source checked
Oct 22, 2026
References
2 linked sources
Open source record