CVE-2026-4147 Stack memory disclosure in filemd5 command
An authenticated user can read uninitialized stack memory via the filemd5 command, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-4147?
CVE-2026-4147 is a high-severity vulnerability in Mongodb Mongodb, published on 17 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command.
Which versions are affected by CVE-2026-4147?
1 open source package ship an affected version, including mongodb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mongodb Bitnami | From 7.0.0 | 7.0.31, 8.0.20, 8.2.6, 8.3.1 |
Products include Mongodb Mongodb.
How do I fix CVE-2026-4147?
Upgrade mongodb to a fixed version for your release line: 7.0.31, 8.0.20, 8.2.6 or 8.3.1.
Is CVE-2026-4147 being exploited?
There is no known exploitation of CVE-2026-4147 in the wild and no public exploit code.
Other vulnerabilities in Mongodb Mongodb
- CVE-2025-14847 MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency
- CVE-2026-82067 Auth bypass in MongoDB Server
- CVE-2026-13072 MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption
- CVE-2017-15535 Denial of service in n/a
- CVE-2026-18691 Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
Sources
Also known as BIT-mongodb-2026-4147, GHSA-65gf-rq85-48c5, MINI-42w2-rhwx-34wh, MINI-jxgp-q27h-f973, UBUNTU-CVE-2026-4147.