Vulnerability in MongoDB Mongosh
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- MongoDB Mongosh
- MongoDB Inc Mongosh — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jira.mongodb.org/browse/MONGOSH-2024 (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-1691?
- CVE-2025-1691 is a high-severity vulnerability in MongoDB Mongosh, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.6/10. Published 2025-02-27.
- How severe is CVE-2025-1691?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2025-1691 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.