Vulnerability Details CVE-2026-9748
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 20.6%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-9748
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cpe:2.3:a:mongodb:mongodb:7.0.0
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cpe:2.3:a:mongodb:mongodb:7.0.1
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cpe:2.3:a:mongodb:mongodb:7.0.10
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cpe:2.3:a:mongodb:mongodb:7.0.11
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cpe:2.3:a:mongodb:mongodb:7.0.12
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cpe:2.3:a:mongodb:mongodb:7.0.13
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cpe:2.3:a:mongodb:mongodb:7.0.14
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cpe:2.3:a:mongodb:mongodb:7.0.15
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cpe:2.3:a:mongodb:mongodb:7.0.16
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cpe:2.3:a:mongodb:mongodb:7.0.17
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cpe:2.3:a:mongodb:mongodb:7.0.18
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cpe:2.3:a:mongodb:mongodb:7.0.19
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cpe:2.3:a:mongodb:mongodb:7.0.2
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cpe:2.3:a:mongodb:mongodb:7.0.20
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cpe:2.3:a:mongodb:mongodb:7.0.21
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cpe:2.3:a:mongodb:mongodb:7.0.22
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cpe:2.3:a:mongodb:mongodb:7.0.23
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cpe:2.3:a:mongodb:mongodb:7.0.24
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cpe:2.3:a:mongodb:mongodb:7.0.25
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cpe:2.3:a:mongodb:mongodb:7.0.26
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cpe:2.3:a:mongodb:mongodb:7.0.27
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cpe:2.3:a:mongodb:mongodb:7.0.28
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cpe:2.3:a:mongodb:mongodb:7.0.29
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cpe:2.3:a:mongodb:mongodb:7.0.3
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cpe:2.3:a:mongodb:mongodb:7.0.30
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cpe:2.3:a:mongodb:mongodb:7.0.31
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cpe:2.3:a:mongodb:mongodb:7.0.32
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cpe:2.3:a:mongodb:mongodb:7.0.4
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cpe:2.3:a:mongodb:mongodb:7.0.5
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cpe:2.3:a:mongodb:mongodb:7.0.6
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cpe:2.3:a:mongodb:mongodb:7.0.7
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cpe:2.3:a:mongodb:mongodb:7.0.8
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cpe:2.3:a:mongodb:mongodb:7.0.9
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cpe:2.3:a:mongodb:mongodb:8.0.0
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cpe:2.3:a:mongodb:mongodb:8.0.1
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cpe:2.3:a:mongodb:mongodb:8.0.2
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cpe:2.3:a:mongodb:mongodb:8.0.3
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cpe:2.3:a:mongodb:mongodb:8.0.4
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cpe:2.3:a:mongodb:mongodb:8.0.5
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cpe:2.3:a:mongodb:mongodb:8.0.6
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cpe:2.3:a:mongodb:mongodb:8.0.7
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cpe:2.3:a:mongodb:mongodb:8.0.8
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cpe:2.3:a:mongodb:mongodb:8.0.9
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cpe:2.3:a:mongodb:mongodb:8.2.0
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cpe:2.3:a:mongodb:mongodb:8.2.1
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cpe:2.3:a:mongodb:mongodb:8.2.2
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cpe:2.3:a:mongodb:mongodb:8.2.3
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cpe:2.3:a:mongodb:mongodb:8.2.4
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cpe:2.3:a:mongodb:mongodb:8.2.5
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cpe:2.3:a:mongodb:mongodb:8.2.6
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cpe:2.3:a:mongodb:mongodb:8.2.7
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cpe:2.3:a:mongodb:mongodb:8.3.0