CVE-2026-120820 (GCVE-0-2026-120820)

Vulnerability from cvelistv5 – Published: 2026-11-10 20:16 – Updated: 2026-11-10 20:16
VLAI
Title
Uncontrolled Resource Consumption in MongoDB Server Per-Namespace Encrypted-Field Statistics Table Leads to Denial of Service
Summary
MongoDB Server maintains an in-memory table of per-namespace statistics for operations that carry encrypted-field information. Entries are created for any namespace supplied in a request, with no limit on the number of entries and no way to remove entries that never corresponded to a real collection. A user with basic read privileges who repeatedly issues ordinary read commands referencing arbitrary namespace names may cause the server process to retain steadily increasing amounts of memory and to slow down on the affected code path; the memory is reclaimed only by restarting the process.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 254 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MongoDB MongoDB Server Affected: 9.0.0 , < 9.0.7 (semver)
Affected: 8.3.0 , < 8.3.16 (semver)
Affected: 8.0.0 , < 8.0.37 (semver)
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    "datePublished": "2026-11-10T20:16:40.103Z",
    "dateReserved": "2026-11-02T22:54:37.535Z",
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      "percentile": "0.30011"
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          }
        ],
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        "lastModified": "2026-11-10T22:08:59.707",
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}



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