CVE-2025-14847

MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

MongoDB — MongoDB and MongoDB Server

Added to KEV catalog: 29 December 2025
Federal remediation due date: 19 January 2026
Weakness classification (CWE): CWE-130

CISA Description

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.

Required action

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

Notes

This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://jira.mongodb.org/browse/SERVER-115508 ; https://nvd.nist.gov/vuln/detail/CVE-2025-14847

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