HarborGuard / CVE
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HIGHCVE-2026-1847Published Modified CNA mongodb

CVE-2026-1847: MongoDB Server may crash when inserting large documents

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.

Metrics

CVSS v4.0
7.1
Severity
HIGH
Fixed in
7.0.29
Affected Products
1

Fix available

7.0.298.0.18
Affected packages
  • MongoDB Inc / MongoDB Server
    < 8.0.18 (from 8.0) · < 7.0.29 (from 7.0)
CVSS Vector
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