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CVE-2026-114651

6.3 medium Awaiting Analysis
NVD · CVE.org

A memory-handling weakness in the BSON deserialization component of the MongoDB C# Driver may cause data left over from previously processed content to be returned when specially crafted serialized input is parsed. An unauthenticated party able to supply serialized data to an application that maps certain primitive collection types can cause residual bytes from unrelated data processed earlier on the same execution thread to be surfaced as legitimate values. This can result in disclosure of a limited amount of information belonging to other requests or principals of the consuming application. No authentication or special privileges within the application are required.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 6

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 19:45
  2. StatusReceived → PublishedNVD modified 2026-10-22 20:38
  3. References+1 references (now 3)NVD modified 2026-10-22 21:17
  4. StatusPublished → ReceivedNVD modified 2026-10-22 21:17
  5. StatusReceived → PublishedNVD modified 2026-10-22 19:13
  6. First seenCVSS 6.3NVD modified 2026-10-22 19:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3