MongoDB C Driver up to 1.30.14/2.5.7 GridFS uninitialized pointer

Summaryinfo

A vulnerability labeled as problematic has been found in MongoDB C Driver up to 1.30.14/2.5.7. The affected element is an unknown function of the component GridFS. The manipulation results in uninitialized pointer. This vulnerability is cataloged as CVE-2026-120684. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in MongoDB C Driver up to 1.30.14/2.5.7. Affected is an unknown part of the component GridFS. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. CWE is classifying the issue as CWE-824. The product accesses or uses a pointer that has not been initialized. This is going to have an impact on confidentiality. CVE summarizes:

A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.

The advisory is shared for download at jira.mongodb.org. This vulnerability is traded as CVE-2026-120684 since 11/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• C Driver

Version

• 1.30.0
• 1.30.1
• 1.30.2
• 1.30.3
• 1.30.4
• 1.30.5
• 1.30.6
• 1.30.7
• 1.30.8
• 1.30.9
• 1.30.10
• 1.30.11
• 1.30.12
• 1.30.13
• 1.30.14
• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5
• 2.5.6
• 2.5.7

License

• open-source

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
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Once again VulDB remains the best source for vulnerability data.

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