MongoDB Shell may be susceptible to Control Character Injection via autocomplete
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | mongosh | < 2.3.9 | 2.3.9 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-74- Platform
- npm
- Package
mongosh- Disclosed
- 27.02.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-43g5-2wr2-q7vj - CC BY 4.0
Vulnerability history: mongosh
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 02.2025 02.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
- Low 1
Disclosures per year
- 2025: 4
- 2026: 0
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MongoDB Shell may be susceptible to Control Character Injection via autocomplete this entry
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