Use After Free Affecting mongodb package, versions [,7.0.31)[7.1.0-alpha,8.0.20)[8.1.0-alpha,8.2.6)[8.3.0-alpha0,8.3.0-rc2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-MONGODB-15838420
- published30 Mar 2026
- disclosed17 Mar 2026
- creditUnknown
Introduced: 17 Mar 2026
CVE-2026-4148 (opens in a new tab)How to fix?
Upgrade mongodb to version 7.0.31, 8.0.20, 8.2.6, 8.3.0-rc2 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the ExpressionContext when handling $lookup or $graphLookup aggregation operators in sharded clusters. An attacker can execute arbitrary code or cause a denial of service by issuing specially crafted aggregation pipelines.