MongoDB mongosh up to 2.3.8 Control Character injection

Summaryinfo

A vulnerability has been found in MongoDB mongosh up to 2.3.8 and classified as problematic. This vulnerability affects unknown code of the component Control Character Handler. The manipulation leads to injection. This vulnerability is traded as CVE-2025-1691. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in MongoDB mongosh up to 2.3.8. This issue affects an unknown part of the component Control Character Handler. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The MongoDB Shell may be susceptible to control character injection where an attacker with control of the mongosh autocomplete feature, can use the autocompletion feature to input and run obfuscated malicious text. This requires user interaction in the form of the user using ‘tab’ to autocomplete text that is a prefix of the attacker’s prepared autocompletion. This issue affects mongosh versions prior to 2.3.9.  The vulnerability is exploitable only when mongosh is connected to a cluster that is partially or fully controlled by an attacker.

It is possible to read the advisory at jira.mongodb.org. The identification of this vulnerability is CVE-2025-1691 since 02/25/2025. The exploitation is known to be difficult. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 234125 (MongoDB Shell < 2.3.9 Control Character Injection (MONGOSH-2024, MONGOSH-2025, MONGOSH-2026)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.3.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (234125). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• mongosh

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7
• 2.3.8

License

• open-source

CPE 2.3info

• 🔍
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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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