CVE-2026-9743 (GCVE-0-2026-9743)
Vulnerability from cvelistv5 – Published: 2026-06-09 21:59 – Updated: 2026-06-10 13:50
VLAI
EPSS
VEX
Title
Aggregation sub-pipeline null dereference may allow DoS via crafted getMore
Summary
In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 13:50 UTC
CWE
- CWE-476 - NULL pointer dereference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| MongoDB | MongoDB server |
Affected:
8.0.0 , < 8.0.24
(semver)
|
guessed |
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