CVE catalog
CVE-2026-8202
Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization
- Severity
- Medium · CVSS 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.26% · Oct 25, 2026
Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization at 100% for an extended period of time. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | mongodb | Not reported | 7.0.34 | fixed |
| Cpe | mongodb | Not reported | 8.0.23 | fixed |
| Cpe | mongodb | Not reported | 8.2.9 | fixed |
| Cpe | mongodb | Not reported | 8.3.2 | fixed |
| Ubuntu | mongodb | pro | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu2 | vulnerable |
| Ubuntu | mongodb | pro | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5 | vulnerable |
| Ubuntu | mongodb | pro | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2 | vulnerable |
| Ubuntu | mongodb | pro | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3 | vulnerable |
| Ubuntu | mongodb | pro | 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3+esm1 | vulnerable |
| Cpe | mongodb | Not reported | 8.3.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | mongodb | cpe | Not reported | 7.0.34 | Not reported | Not reported | Not reported |
| Cpe | mongodb | cpe | Not reported | 8.0.23 | Not reported | Not reported | Not reported |
| Cpe | mongodb | cpe | Not reported | 8.2.9 | Not reported | Not reported | Not reported |
| Cpe | mongodb | cpe | Not reported | 8.3.2 | Not reported | Not reported | Not reported |
| Cpe | mongodb | cpe | Not reported | 8.3.2 | Not reported | NVD-CVE-2026-8202 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://jira.mongodb.org/browse/SERVER-120668]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-8202]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-8202]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1516.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]