CVE-2026-4358
Last modified
CVE-2026-4358 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mongodb | Mongodb | >= 7.0.0, < 7.0.31 |
| Mongodb | Mongodb | >= 8.0.0, < 8.0.20 |
| Mongodb | Mongodb | >= 8.2.0, < 8.2.6 |
References
- https://jira.mongodb.org/browse/SERVER-118849Exploit, Vendor Advisory
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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