EUVD-2026-72951
GHSA-9hcc-jgqh-2rwq
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
Unauthenticated network access suffices; scope unchanged as only the targeted mongod process terminates with no confidentiality or integrity impact.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
Lifecycle Timeline
3DescriptionCVE.org
A security issue in MongoDB Server allows an unauthenticated network user to cause a denial of service on a specific type of replica set member. The server contains an assertion in its read concern processing logic that can be reached without authentication, and the assertion's assumptions about internal state do not hold for all member configurations, causing the server process to terminate.
Articles & Coverage 1
AnalysisAI
Denial of service in MongoDB Server allows an unauthenticated remote attacker to terminate the mongod process by triggering a reachable assertion (CWE-617) in the read concern processing path. The flaw affects specific replica set member configurations across three MongoDB major release lines - 7.0.x, 8.0.x, and 8.3.x - and requires no credentials to exploit over the network. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the targeted MongoDB instance be a member of a replica set and be operating in a specific member configuration or role (exact role not named in available data). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H) accurately reflects the core risk profile: network-reachable, no authentication required, no complexity barrier, and a process-terminating availability impact. … 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 | Upgrade to MongoDB Server 7.0.41, 8.0.30, or 8.3.9 as appropriate for your release branch; these are the first fixed versions per EUVD-2026-72951. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify and catalog all MongoDB 7.0.x, 8.0.x, and 8.3.x deployments in your environment, including replica set member configurations and maintenance windows. …
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Same weakness CWE-617 – Reachable Assertion
View allSame technique Denial Of Service
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External POC / Exploit Code
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