CVE-2026-8336 (GCVE-0-2026-8336)

Vulnerability from cvelistv5 – Published: 2026-05-13 00:16 – Updated: 2026-05-15 16:16
VLAI
Title
Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands
Summary
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.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:N/R:A/V:D/RE:M/U:Red
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:35 UTC
CWE
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 222 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MongoDB, Inc. MongoDB Server Affected: 8.2 , < 8.2.9 (custom)
Affected: 8.3 , < 8.3.2 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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