CVE-2026-9748
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mongodb
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-617CWE-617
How to fix
Update
- mongodb mongodb7.0.35, 8.0.10, 8.2.10, 8.3.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 7.0.0 ≤ v < 7.0.35, 8.0.0 ≤ v < 8.0.10, 8.2.0 ≤ v < 8.2.10, 8.3.0 ≤ v < 8.3.3 | 7.0.35, 8.0.10, 8.2.10, 8.3.3 |
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