CVE-2026-4147

Stack memory disclosure in filemd5 command

CVE-2026-4147 is fixed in MongoDB on 1 platform by MongoDB 8.2.6 (version 8.2.6), released February 25, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0023

13th percentile

An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
MongoDB	8.2.6	MongoDB 8.2.6	Feb 25, 2026

Details

Published
March 17, 2026
Weakness
CWE-457: Use of uninitialized variable
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-4147

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