MongoDB Database Tools up to 100.20.0 mongofiles symlink

Summaryinfo

A vulnerability was found in MongoDB Database Tools up to 100.20.0. It has been rated as problematic. Affected is an unknown function of the component mongofiles. The manipulation leads to symlink. This vulnerability is documented as CVE-2026-119673. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MongoDB Database Tools up to 100.20.0. It has been rated as problematic. This issue affects an unknown function of the component mongofiles. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is integrity. The summary by CVE is:

MongoDB Database Tools mongofiles does not resolve existing parent-directory symlinks when validating output paths for get_regex. An unauthorized user who can both upload a GridFS file and place a symlink in the operator's download working directory can cause a later retrieval to create a file containing unauthorized user-controlled data outside that directory, using the operator process's filesystem permissions. The issue can occur with default traversal and overwrite settings. Exploitation requires an operator to retrieve matching files from the affected working directory; the demonstrated default behavior creates a new file rather than overwriting an existing file. This issue affects MongoDB Database Tools versions 100.2.0 through versions before 100.20.1.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-119673 since 10/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 100.20.1 eliminates this vulnerability.

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Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• Database Tools

Version

• 100.0
• 100.1
• 100.2
• 100.3
• 100.4
• 100.5
• 100.6
• 100.7
• 100.8
• 100.9
• 100.10
• 100.11
• 100.12
• 100.13
• 100.14
• 100.15
• 100.16
• 100.17
• 100.18
• 100.19
• 100.20.0

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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