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CVE-2026-82068

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

MEDIUM
6.5
CVSS Score
Published: September 8, 2026 at 04:12 PM UTC
Updated: September 16, 2026 at 08:54 PM UTC
1 product affected across 1 vendorMongoDB

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MongoDB· MongoDB
95%
7.0.0 ≤ v < 7.0.418.0.0 ≤ v < 8.0.308.3.0 ≤ v < 8.3.97.0.08.0.08.3.0
Affected range stops below 7.0.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.30, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.3.9, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryIssue Tracking
Source: cverecord
https://jira.mongodb.org/browse/SERVER-131326

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMmongodb
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-617

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