CVE-2025-1691: mongosh Injection — Fix

Description

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.

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CVSS v3.1 Score

7.6

HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-74 CWE-74

Affected Products

Vendor	Product	Versions
mongodb	mongosh	< 2.3.9

References

Advisories & Patches

https://jira.mongodb.org/browse/MONGOSH-2024

Frequently Asked Questions

What is CVE-2025-1691? +

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 has a CVSS v3.1 base score of 7.6 (HIGH).

How severe is CVE-2025-1691? +

CVE-2025-1691 has a CVSS v3.1 score of 7.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-1691? +

CVE-2025-1691 affects products from mongodb, specifically: mongosh. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-1691? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-1691