Vulnerability in MongoDB
CVE-2026-4147
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Affected products
- MongoDB — versions 8.3.0
- MongoDB Inc Server — versions 8.2, 8.0, 7.0
Weakness classification (CWE)
References
- jira.mongodb.org/browse/SERVER-119317 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-4147?
- CVE-2026-4147 is a medium-severity vulnerability in MongoDB, classified under CWE-457. CVSS score: 6.5/10. Published 2026-03-17.
- How severe is CVE-2026-4147?
- Medium severity. CVSS v3 base score is 6.5 out of 10.