MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-01-19 · passed 7 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
MongoDB MongoDB and MongoDB Server. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-130.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 7 months ago
Sources
- NVD entry for CVE-2025-14847 nvd.nist.gov/vuln/detail/CVE-2025-14847
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- jira.mongodb.org jira.mongodb.org/browse/SERVER-115508
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-14847