EUVD-2026-56918
GHSA-j7rj-q56q-v829
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/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-reachable with low privileges; scope changes because server-wide logging is affected beyond the authenticated user's database, yielding S:C with limited integrity and availability impact.
Primary rating from Vendor (mongodb).
CVSS VectorVendor: mongodb
Lifecycle Timeline
3DescriptionCVE.org
An issue in MongoDB Server could allow an authenticated user with limited, database-scoped privileges to modify diagnostic logging settings that affect the entire server rather than just the intended database. This could allow suppression of diagnostic logging server-wide, potentially obscuring unauthorized activity, or degrade operational monitoring by causing excessive log volume.
AnalysisAI
Privilege boundary enforcement failure in MongoDB Server allows an authenticated user holding only database-scoped privileges to modify diagnostic logging parameters at the server-wide level. Affected versions span MongoDB 7.0 (before 7.0.40), 8.0 (before 8.0.29), and 8.3 (before 8.3.8). An attacker with low-privilege credentials can either suppress server-wide diagnostic logging to obscure unauthorized activity or flood logs to degrade operational monitoring - effectively undermining the integrity of the audit and observability layer. No public exploit code exists and CISA has not added this to the KEV catalog.
Technical ContextAI
MongoDB Server implements role-based access control (RBAC) with privilege scoping intended to confine database-level users to operations within their assigned database. CWE-269 (Improper Privilege Management) identifies the root cause: the server fails to correctly enforce privilege scope boundaries when processing requests to modify diagnostic logging configuration. Log management settings - such as verbosity levels or component filters - are server-level resources, yet the access control check apparently evaluates only whether the user holds any relevant privilege rather than whether that privilege is scoped appropriately. The affected CPE is cpe:2.3:a:mongodb:mongodb_server:*:*:*:*:*:*:*:*, spanning all deployment modes where MongoDB Server is used with multi-tenant or least-privilege RBAC configurations.
RemediationAI
The primary remediation is to upgrade MongoDB Server to a fixed release: 7.0.40 or later for the 7.0 branch, 8.0.29 or later for the 8.0 branch, or 8.3.8 or later for the 8.3 branch, per vendor guidance referenced in EUVD-2026-56918 and SERVER-130198. As a compensating control prior to patching, administrators should audit and restrict which roles carry any logging-related privileges, removing diagnostic log configuration capabilities from database-scoped roles that do not operationally require them. Additionally, enabling external log integrity monitoring (e.g., shipping logs to an immutable SIEM destination in real time) reduces the impact of log suppression by ensuring that log state changes are themselves observable out-of-band. Note that restricting log configuration privileges may affect operational tooling that relies on dynamic verbosity adjustment for troubleshooting.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today