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.
CVSS Details
- CVSS 4.0 Base Score: 8.7 (HIGH)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | freebsd-upgrade-package-mongodb80freebsd-upgrade-package-mongodb70 | Jan 27, 2026 | Dec 22, 2025 | |
| Mongodb | mongodb-upgrade-4_4_30mongodb-upgrade-5_0_32mongodb-upgrade-6_0_27mongodb-upgrade-7_0_28mongodb-upgrade-8_0_17mongodb-upgrade-8_2_3 | Dec 27, 2025 | Dec 19, 2025 | |
| Splunk | splunk-upgrade-latest | Jan 30, 2026 | Dec 19, 2025 | |
| Ubuntu | ubuntu-pro-upgrade-mongodbubuntu-pro-upgrade-mongodb-clientsubuntu-pro-upgrade-mongodb-serverubuntu-pro-upgrade-mongodb-server-core | Apr 13, 2026 | Dec 19, 2025 |
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