CVE-2026-5170
A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set. This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.
- Affected products
- Mongodb Server, Mongodb, Red Os
- Mongodb
- < 7.0.31, 8.0.18, 8.2.2
- Fix
- Available
- CVSS 4.0
- 6.0 MEDIUM
- CVSS 3.1
- 5.3 MEDIUM
- EPSS
- 0.2% (10th percentile)
- Weakness
- CWE-617
- NVD status
- Analyzed
- Published
- 2026-03-30
CVE-2026-5170 at NVD
No indexed exploits for CVE-2026-5170 yet
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No exploit for CVE-2026-5170 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.