CVE-2026-82071

Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds Write

State: Published
Severity: 7.2 High
Published: Sep 8, 2026
Updated: Sep 8, 2026
Reserved: Aug 27, 2026

Description

Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bounds memory write in the server process, causing a denial of service via server crash, with potential for further impact including arbitrary code execution.

Scores

CVSS	Score	Vector	Source
4.0	7.2 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N	mongodb
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H	mongodb

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
MongoDB ServerMongoDB	8.3.0 to before 8.3.9Affected

References

https://jira.mongodb.org/browse/SERVER-131860

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