EUVD-2026-72941
GHSA-6wc7-3wqm-rgrj
Severity by source
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
Network-accessible with low-privilege credentials required (PR:L); no confidentiality or integrity impact; A:H for full mongod process termination affecting all clients.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
Lifecycle Timeline
3DescriptionCVE.org
A security issue exists in MongoDB server's JSON Pointer parser used during $jsonSchema query filter processing. When a find command includes a specially crafted $jsonSchema filter field, the parser processes the input without enforcing adequate limits on iteration count or total allocation size, resulting in significant memory amplification. Under concurrent request load, the cumulative memory consumption can exhaust available heap memory, causing the server's out-of-memory handler to terminate the mongod process and deny service to all connected clients.
Articles & Coverage 1
AnalysisAI
MongoDB Server's JSON Pointer parser, invoked during $jsonSchema query filter processing, fails to enforce limits on iteration count or total allocation size, enabling authenticated remote attackers to cause significant memory amplification. Sending specially crafted find commands with malicious $jsonSchema filters - particularly under concurrent load - causes cumulative heap exhaustion that triggers MongoDB's out-of-memory handler, terminating the mongod process and denying service to all connected clients simultaneously. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires valid MongoDB credentials with at least read-level access to execute find commands against any database collection - this is the minimum permission level in MongoDB and is commonly held by application service accounts, developers, and analysts. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N, score 7.1) accurately captures the key risk dimensions: network-accessible, low complexity, no user interaction, but gated behind low-privilege authentication - the PR:L metric is the primary limiting factor. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version has been identified in the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all MongoDB Server deployments to identify which systems allow external or non-privileged user database access, as this determines your risk exposure. …
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External POC / Exploit Code
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