MongoDBCVE-2026-82060
MongoDB Server: authenticated user could store documents with specially
Low2.3CVE-2026-82060 · Published Sep 8, 2026 · updated Sep 16, 2026
In MongoDB, insufficient validation of shard key values during document insertion allowed authenticated users to store documents with specially crafted, operator-shaped objects as shard key values in sharded collections. When change stream events for such documents were processed with the updateLookup full document mode, the crafted values were embedded into internal post-image lookup queries without proper sanitization, causing them to be interpreted as query operators rather than literal equality values. This could result in change stream consumers receiving incorrect post-image documents or encountering non-resumable fatal errors.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MongoDB Server Product | >= 8.3.0, < 8.3.9 | 8.3.9 |
| >= 8.0.0, < 8.0.30 | 8.0.30 | |
| >= 7.0.0, < 7.0.41 | 7.0.41 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-943
More MongoDB advisories
All MongoDB| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 8 | MongoDB Server: weakly protected credentials | High7.1 | 8.3.9+2 more |
| Sep 8 | MongoDB Server: denial of service | High7.2 | 8.3.9 |
| Sep 8 | MongoDB Server: improper authorization | High7.1 | 8.3.9 |
| Sep 8 | MongoDB Server: improper authorization | High7.1 | 8.0.30+1 more |
| Sep 8 | MongoDB Server: resource exhaustion | High8.7 | 8.3.9+2 more |
| Sep 8 | MongoDB Server: integer overflow | High7.1 | 8.3.9+2 more |