# CVE-2025-1691: MongoDB Shell may be susceptible to Control Character Injection via autocomplete

> CVE-2025-1691: MongoDB Shell may be susceptible to Control Character Injection via autocomplete. CVSS 7.6 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-1691
Last updated: 2026-06-17T08:39:36Z

- Published: 2025-02-27 12:34 UTC · Updated: 2026-06-17 08:39 UTC · Assigner: mongodb
- CVSS: 7.6 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
- EPSS: 0.36%, 29th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-74

## 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.

## Affected vendors and products

- MongoDB Inc: mongosh

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-1691)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-1691)
- [https://jira.mongodb.org/browse/MONGOSH-2024](https://jira.mongodb.org/browse/MONGOSH-2024)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-1691 · Markdown: https://rewindex.com/cve/CVE-2025-1691.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-1691 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:42.090Z