CVE-2026-82064

published 2026-09-08

CVE-2026-82064: 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…

Priority P3 45 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
mongodb	mongodb	>= 7.0.0 < 7.0.41	7.0.41
mongodb	mongodb	>= 8.0.0 < 8.0.30	8.0.30
mongodb	mongodb	>= 8.3.0 < 8.3.9	8.3.9
mongodb	mongodb_server	>= 7.0.0 < 7.0.41	7.0.41
mongodb	mongodb_server	>= 8.0.0 < 8.0.30	8.0.30
mongodb	mongodb_server	>= 8.3.0 < 8.3.9	8.3.9

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v4.0 8.7 HIGH 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

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CWE-617