Awaitable Hello Command in Exhaust Mode Unthrottled Response Loop Leading to Denial of Service (MongoDB MongoDB Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.44 % · percentile 39 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mongodb
- NVD status
- Analyzed
Description
An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.
Weaknesses (CWE)
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | mongodb |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | mongodb |
| CVSS 4.0 | MEDIUM 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 | NVD · cna@mongodb.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · cna@mongodb.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-47787
- GCVE · GCVE-0-2026-13074
CERT-FR advisories
- CERTFR-2026-AVI-0922 — Multiples vulnérabilités dans MongoDB · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 7.0.0 < 7.0.39cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.0.28cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 8.2.0 < 8.2.12cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*≥ 8.3.0 < 8.3.7
Affected products
| Product | Versions |
|---|---|
| MongoDB · MongoDB Server | affected 7.0 < 7.0.39 ; affected 8.0 < 8.0.28 ; affected 8.2.0 < 8.2.12 ; affected 8.3.0 < 8.3.7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |