CVE-2026-9743
HIGH EPSS 22.3%
Published Jun 9, 20263w ago · Modified Jun 17, 20262w ago
7.1 CVSS 4.0
Published Jun 9, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-476 NULL Pointer Dereference Memory Safety
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| mongodb | mongodb | * | ≥8.0.0 – <8.0.24 |
References 1
- jira.mongodb.org https://jira.mongodb.org/browse/SERVER-123688
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.