CVE-2026-18688
Last modified
CVE-2026-18688 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Mongodb | Mongodb | >= 7.0.0, < 7.0.40 | — |
| Mongodb | Mongodb | >= 8.0.0, < 8.0.29 | — |
| Mongodb | Mongodb | >= 8.2.0, <= 8.2.12 | — |
| Mongodb | Mongodb | >= 8.3.0, < 8.3.8 | — |
| Mongodb | Mongodb | 9.0.0 | Alpha0 |
| Mongodb | Mongodb | 9.1.0 | Alpha0 |
References
- https://jira.mongodb.org/browse/SERVER-129617Vendor Advisory, Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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