CVE-2026-1847
HIGHCVSS 7.5/10EPSS 0.24%
Last modified
CVE-2026-1847 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mongodb | Mongodb | >= 7.0.0, < 7.0.29 |
| Mongodb | Mongodb | >= 8.0.0, < 8.0.18 |
| Mongodb | Mongodb | >= 8.2.0, < 8.2.4 |
References
- https://jira.mongodb.org/browse/SERVER-113532Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-1847?
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.
How severe is CVE-2026-1847?
CVE-2026-1847 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2026-1847?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-1847?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST