Medium severity6.5NVD Advisory· Published Jul 22, 2026· Updated Aug 5, 2026
CVE-2026-13055
CVE-2026-13055
Description
The $_internalIndexKey aggregation expression can be used by any authenticated user to crash a MongoDB server (mongod). The expression fails to handle compound wildcard index specifications, triggering an internal consistency check that aborts the server process. The user must be able to run an aggregation pipeline.
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Affected products
3Patches
Vulnerability mechanics
References
1- jira.mongodb.org/browse/SERVER-123081nvdVendor AdvisoryIssue Tracking
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