CVE-2025-14847
Zlib compressed protocol header length confusion may allow memory read
MongoDB·and MongoDB Server
- Added
- Dec 29, 2025
- Fix due
- Jan 19, 2026
- Ransomware
- Not known
- Published
- Dec 19, 2025
- Updated
- Feb 26, 2026
- First covered
- Jul 2, 2026
- Latest story
- 4 months ago
Summary
Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Server v5.0 versions prior to 5.0.32, MongoDB Server v4.4 versions prior to 4.4.30, MongoDB Server v4.2 versions greater than or equal to 4.2.0, MongoDB Server v4.0 versions greater than or equal to 4.0.0, and MongoDB Server v3.6 versions greater than or equal to 3.6.0.
CWE-130Improper Handling of Length Parameter Inconsistency
Attack profile
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCISA 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.
Affected products
- MongoDB Server8.2 to before 8.2.38.0 to before 8.0.177.0 to before 7.0.286.0 to before 6.0.27