Home/CVE/Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the o
CVE

CVE-2026-1847

Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the o

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.

MEDIUM · CVSS 6.5 EPSS 0.00077
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

3
mongodb>= 7.0.0 and < 7.0.29
mongodb>= 8.0.0 and < 8.0.18
mongodb>= 8.2.0 and < 8.2.4
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cna@mongodb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Feb 2026 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.mongodb.org/browse/SERVER-113532Vendor Advisory
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