CVE-2026-84963

Summary

An incorrect numeric conversion in the JSON parsing component of the MongoDB C Driver's BSON library may cause an unusually large text value to be silently shortened, or the corresponding field to be omitted, while the parsing operation still reports success and returns no error. An unauthenticated party who can supply the input processed by an application that uses this component may cause that application to hold data that does not match what was submitted, which may result in unintended alteration of data.

Affected Software

VendorProductVersion RangeStatus
MongoDBC Driver1.10.0 < 1.30.9affected
MongoDBC Driver2.0.0 < 2.5.2affected

Weaknesses

  • CWE-681: CWE-681: Incorrect Conversion between Numeric Types

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References