CVE-2026-18694 json
Out-of-Bounds Read in MongoDB Geospatial Query Processing Leads to Denial of Service and Potential Memory Disclosure
published 2026-08-11 2 mo ago modified 2026-10-23 16 d ago also BIT-mongodb-2026-18694 , EUVD-2026-56917
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
An issue in MongoDB Server's geospatial query processing could allow an authenticated user with write privileges to cause certain malformed geometry data to be stored and later processed without proper validation. Subsequent queries against this data could then result in the server accessing memory outside its intended bounds. This could result in a server crash (denial of service) and may expose a limited amount of server process memory.
Patch / fix
- bitnami mongodb 7.0.40, 8.0.29, 8.3.8, 9.0.2
- MongoDB MongoDB Server 7.0.40, 8.0.29, 8.3.8
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mongodb | >=7.0.0, <7.0.40 >=8.0.0, <8.0.29 >=8.2.0, <8.3.8 >=9.0.0, <9.0.2 |
7.0.40 8.0.29 8.3.8 9.0.2 |
Affected products
- MongoDB MongoDB Server
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
- Technology feeds
References
-
jira.mongodb.org
/browse/SERVER-130188
issue-tracking, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-18694
web
Sources
- CVE List CVE-2026-18694
- NVD CVE-2026-18694
- OSV BIT-mongodb-2026-18694
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