CVE-2026-1847 json
MongoDB Server may crash when inserting large documents
published 8mo ago modified 2mo ago also BIT-mongodb-2026-1847 , EUVD-2026-6736
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the oplog from the primary. This could stall replication inside the replica set leading to server crash.
Patch / fix
- bitnami mongodb 7.0.29, 8.0.18, 8.2.4
- MongoDB Inc MongoDB Server 7.0.29, 8.0.18
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-09).
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:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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 |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mongodb | >=7.0.0, <7.0.29 >=8.0.0, <8.0.18 >=8.2.0, <8.2.4 |
7.0.29 8.0.18 8.2.4 |
Affected products
- MongoDB Inc MongoDB Server
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
- Technology feeds
References
-
jira.mongodb.org
/browse/SERVER-113532
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-1847
web
Sources
- CVE List CVE-2026-1847
- NVD CVE-2026-1847
- OSV BIT-mongodb-2026-1847
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