MongoDB Shell may be susceptible to Control Character Injection via autocomplete
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MongoDB | mongosh | before 2.3.9 | 2.3.9 | Patch available | CNA |
| — | mongosh (npm) | before 2.3.9 | 2.3.9 | Patch available | GHSA-43g5-2wr2-q7vj |
- mongosh VendorMongoDB Affected before 2.3.9 Fixed in 2.3.9 Patch available CNA
- mongosh (npm) Vendor— Affected before 2.3.9 Fixed in 2.3.9 Patch available GHSA-43g5-2wr2-q7vj
Remediation
- Fix · CNA mongosh (MongoDB Inc) Fixed in 2.3.9
- Fix · GHSA-43g5-2wr2-q7vj mongosh (npm) Fixed in 2.3.9 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MongoDB mongosh 2.3.9
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-01455 MongoDB Shell may be susceptible to control character injection via pastingPriority MEDIUM 40
- TI-2025-01456 MongoDB Shell may be susceptible to control character Injection via shell outputPriority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1691
- 2026-10-03 Alias added: GHSA-43g5-2wr2-q7vj
References
More MongoDB Mongosh vulnerabilities
- TI-2025-01455 MongoDB Shell may be susceptible to control character injection via pasting CVSS 3.1HIGH 8.8
- TI-2025-01513 MongoDB Shell may be susceptible to local privilege escalation in Windows CVSS 3.1HIGH 7.8
- TI-2025-01456 MongoDB Shell may be susceptible to control character Injection via shell output CVSS 3.1MEDIUM 6.8
Sources
- CVE-2025-1691 · CVE Program
- CVE-2025-1691 · NVD
- FIRST EPSS
- GHSA-43g5-2wr2-q7vj · GitHub Advisory Database · CC BY 4.0
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