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CVE-2026-8336

Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands PUBLISHED

Description (CNA)

After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command’s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service. This issue impacts MongoDB Server v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Affected (CNA)

Vendor / productVersions
MongoDB, Inc. / MongoDB Serveraffected 8.2 before 8.2.9; affected 8.3 before 8.3.2

CWE

CWE-416

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.