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Medium 6.5Published Feb 10, 2026
CVE-2026-1850An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification
Updated under an hour ago ()
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It affects MongoDB Inc MongoDB Server and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Analyzed
- Record last updated
- Feb 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MongoDB Inc MongoDB Server mongodb:server (from the name) | from 8.0 before 8.0.18; from 8.2 before 8.2.4 | CNA record |
mongodb mongodb mongodb:mongodb | from 8.0.0 before 8.0.18; from 8.2.0 before 8.2.4 | NVD |
References
- https://jira.mongodb.org/browse/SERVER-114126vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.