CVE-2025-1691
Mongodb Mongosh ≤ 2.3.9
Raw vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2025-1691 is a high-severity Injection (CWE-74) vulnerability in Mongodb Mongosh. Its CVSS base score is 7.6 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2025-1691 is a control character injection vulnerability in the MongoDB Shell, known as mongosh. It allows an attacker with control over the mongosh autocomplete feature to inject and execute obfuscated malicious text through the autocompletion mechanism. The issue requires user interaction, specifically pressing the 'tab' key to autocomplete text that matches a prefix prepared by the attacker. This vulnerability affects mongosh versions prior to 2.3.9.
Exploitation is possible only when mongosh is connected to a MongoDB cluster that is partially or fully controlled by the attacker. The attacker needs high privileges (PR:H) on the cluster, network access (AV:N), and must overcome high attack complexity (AC:H), along with tricking the user into required interaction (UI:R). Successful exploitation can result in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H) with a changed scope (S:C), earning a CVSS v3.1 base score of 7.6. The associated CWE is CWE-74.
Mitigation requires upgrading to mongosh version 2.3.9 or later. Additional details are available in the MongoDB advisory at https://jira.mongodb.org/browse/MONGOSH-2024.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-5466
Vulnerability Data
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…
more
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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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Mitigating Controls (NIST 800-53 r5) AI
SI-10 directly requires validation of information inputs to reject malformed or special-element content before it reaches downstream parsers.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require input validation and output encoding that prevent injection flaws.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development catches injection vulnerabilities before release.
Logging supports detection of injection attempts but does not prevent the weakness.
Monitoring activities can identify active injection attacks after they occur.
Secure development life cycle mandates input validation and output encoding that directly prevent injection flaws.
Application security requirements explicitly call for controls against injection attacks in software design.
Secure architecture principles reduce injection surfaces but do not prescribe specific neutralization techniques.