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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1847?
CVE-2026-1847 has a high severity due to its potential to crash the MongoDB Server.
How do I fix CVE-2026-1847?
To fix CVE-2026-1847, avoid inserting large documents into the MongoDB replica set until a patch is available.
What causes CVE-2026-1847?
CVE-2026-1847 is caused by inserting certain large documents into a MongoDB replica set, leading to replication issues.
Which versions of MongoDB are affected by CVE-2026-1847?
CVE-2026-1847 affects all versions of MongoDB Server that allow large document inserts in a replica set.
What are the consequences of CVE-2026-1847?
The consequences of CVE-2026-1847 include potential server crashes and stalled replication in the MongoDB environment.