MongoDB Server up to 7.0.30/8.0.19/8.2.5 Issuances uninitialized variable

Summaryinfo

A vulnerability was found in MongoDB Server up to 7.0.30/8.0.19/8.2.5. It has been rated as problematic. The affected element is an unknown function of the component Issuances Handler. This manipulation causes uninitialized variable. The identification of this vulnerability is CVE-2026-4147. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in MongoDB Server up to 7.0.30/8.0.19/8.2.5. Affected by this vulnerability is an unknown function of the component Issuances Handler. The manipulation with an unknown input leads to a uninitialized variable vulnerability. The CWE definition for the vulnerability is CWE-457. The code uses a variable that has not been initialized, leading to unpredictable or unintended results. As an impact it is known to affect confidentiality. The summary by CVE is:

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

It is possible to read the advisory at jira.mongodb.org. This vulnerability is known as CVE-2026-4147 since 03/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 303006 (Linux Distros Unpatched Vulnerability : CVE-2026-4147), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.31, 8.0.20 or 8.2.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (303006) and CERT Bund (WID-SEC-2026-0773). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Open Source MongoDB

Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• Server

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.0.13
• 7.0.14
• 7.0.15
• 7.0.16
• 7.0.17
• 7.0.18
• 7.0.19
• 7.0.20
• 7.0.21
• 7.0.22
• 7.0.23
• 7.0.24
• 7.0.25
• 7.0.26
• 7.0.27
• 7.0.28
• 7.0.29
• 7.0.30
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.0.15
• 8.0.16
• 8.0.17
• 8.0.18
• 8.0.19
• 8.2.0
• 8.2.1
• 8.2.2
• 8.2.3
• 8.2.4
• 8.2.5

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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