CVE-2026-9740
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MongoDB | MongoDB Server | 8.3.0 < 8.3.3 | affected |
| MongoDB | MongoDB Server | 8.2.0 < 8.2.10 | affected |
| MongoDB | MongoDB Server | 8.0.0 < 8.0.24 | affected |
| MongoDB | MongoDB Server | 7.0.0 < 7.0.35 | affected |
Weaknesses
- CWE-674: CWE-674 Uncontrolled Recursion
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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