CVE-2026-82068

Persistent Fatal Assertion Crash in MongoDB Server via Crafted Retryable Write Commands Leads to Denial of Service

State: Published
Severity: 7.1 High
Published: Sep 8, 2026
Updated: Sep 8, 2026
Reserved: Aug 27, 2026

Description

A security issue in MongoDB Server allows an authenticated user with write privileges to trigger a persistent fatal assertion crash by sending specially crafted retryable write commands. The crash state is durably persisted, causing the server process to repeatedly crash on restart and potentially propagating to additional nodes in a sharded cluster. Manual intervention is required to restore service availability.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	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	mongodb
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	mongodb

Weaknesses

CWE-617 Reachable Assertion

Affected Products

Product	Versions
MongoDB ServerMongoDB	8.3.0 to before 8.3.9Affected 8.0.0 to before 8.0.30Affected 7.0.0 to before 7.0.41Affected

References

https://jira.mongodb.org/browse/SERVER-131326

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