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CVE-2026-106438

5.1 medium SSVC exploitation: none Analyzed
NVD · CVE.org

An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept certain over-precision inputs containing leading zeros instead of rejecting them. This produces a value different from the supplied text. An actor who can provide a decimal string to an embedding application, including through Extended JSON parsing, can cause the application to store or use an incorrect numeric value.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-27 19:49
  2. StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-27 19:49
  3. First seenCVSS 5.1NVD modified 2026-10-08 20:49

Affected (CPE criteria) 1

  • cpe:2.3:a:mongodb:c_driver:*:*:*:*:*:mongodb:*:*

References 1