MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

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• NewsExploited · CISA KEVMongoDB · MongoDB and MongoDB Server

  MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

  CVE-2025-14847

  MongoDB Server contains an improper handling of length parameter inconsistency vulnerability in Zlib compressed protocol headers. This vulnerability may allow a read of uninitialized heap memory by an unauthenticated client.

  CISA's required action · due 19 Jan 2026 for U.S. federal civilian agencies

  Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  Cited by CISA: jira.mongodb.org · nvd.nist.gov

  Added to KEV 29 Dec 2025 · Source checked 4 Nov 2026, 16:40 UTC · CISA KEV entry

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