VDB
CVE-2026-9748
CVE-2026-9748
PUBLISHED
CVSS 7.1 HIGH
Reported by mongodb · Published June 9, 2026
The $_internalConvertBucketIndexStats stage used PauseExecution as a way to signal "skip this document" when an index stats conversion failed. But PauseExecution is not a general purpose skip mechanism, but rather a TeeBuffer-internal signal used solely by $facet to coordinate its sub-pipelines. When this stage is placed before $facet in a pipeline, TeeBuffer receives the unexpected PauseExecution from upstream and hits a hard invariant assertion, crashing mongod.
Risk Scores
CVSS 4.0
7.1
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
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| MongoDB | MongoDB Server | 8.3.0, 8.2.0, 8.0.0 |
| MongoDB | MongoDB Server | 8.3.0, 8.2.0, 8.0.0 |
Timeline
- Jun 9, 2026 CVE Published
- Jun 10, 2026 Coalition ESS Score
- Jun 10, 2026 CVE Updated
- Jun 12, 2026 Security Advisory