MongoDB 8.2.6
MongoDB 8.2.6, released February 25, 2026, fixes 4 CVEs in MongoDB. None of them is reported as exploited. Patch Radar priority: High. The latest MongoDB is 9.0.4, which also fixes every one of these CVEs.
Superseded. The latest MongoDB is 9.0.4, which also fixes every CVE on this page. Install that instead.
Priority of the 4 CVEs
Applies to
| Product | Version |
|---|---|
| MongoDB | 8.2.6 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-4148 | ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators | 8.7 | 0.0034 | None reported |
| High | CVE-2026-8843 | Calling createIndex with certain index types can crash mongod | 7.1 | 0.0024 | None reported |
| High | CVE-2026-4147 | Stack memory disclosure in filemd5 command | 7.1 | 0.0023 | None reported |
| Routine | CVE-2026-4358 | Memory safety issues in slot-based execution hash table spill | 6.1 | 0.0036 | None reported |
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