TI-2026-56628 Aliases CVE-2026-82064 GHSA-9hcc-jgqh-2rwq

Reachable assertion in MongoDB Server

MEDIUM 44CWE-617Published 2026-09-08 · Updated 2026-09-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-617.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00519 44th percentileScored 2026-11-07

Fix Fixed MongoDB Server (MongoDB): 8.3.9, 8.0.30, 7.0.41

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MongoDB	MongoDB Server	8.3.0 to before 8.3.9; 8.0.0 to before 8.0.30; 7.0.0 to before 7.0.41	8.3.9, 8.0.30, 7.0.41	Patch available	CNA

MongoDB Server VendorMongoDB Affected 8.3.0 to before 8.3.9; 8.0.0 to before 8.0.30; 7.0.0 to before 7.0.41 Fixed in 8.3.9, 8.0.30, 7.0.41 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mongodb:mongodb:::::-:::*	7.0.0 to before 7.0.41; 8.0.0 to before 8.0.30; 8.3.0 to before 8.3.9	Vulnerable	MongoDB

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* Versions 7.0.0 to before 7.0.41; 8.0.0 to before 8.0.30; 8.3.0 to before 8.3.9 Vulnerable ·MongoDB

Remediation

Fix · CNA MongoDB Server (MongoDB) Fixed in 8.3.9, 8.0.30, 7.0.41

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-09-08
MongoDB Server 7.0.41, 8.0.30, 8.3.9
16 records Highest priority Priority MEDIUM 3 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2026-56639 Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of ServicePriority MEDIUM 44
- TI-2026-56631 Improper Case Sensitivity Handling in MongoDB Server Configuration Validation May Cause…Priority MEDIUM 42
- TI-2026-56617 Improper Session Handling in MongoDB Server LDAP Authorization Integration Leads to Incorrect Role AssignmentPriority LOW 35
Show all 16 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-82064
2026-10-03 Alias added: GHSA-9hcc-jgqh-2rwq

References

Advisory 1

https://jira.mongodb.org/browse/SERVER-130759

TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
TI-2013-01669 MongoDB before 2.0.9 and 2.2.x before 2.2.4 does not properly validate requests to the… CVSS 2.0MEDIUM 6.0
TI-2026-56639 Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service CVSS 4.0HIGH 8.7
TI-2026-15322 Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos CVSS 4.0HIGH 8.7
TI-2026-08537 Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow CVSS 4.0HIGH 8.7
TI-2025-02695 MongoDB Server running on Linux may allow unexpected connections where intermediate certificates are revoked CVSS 3.1CRITICAL 9.8

See all 187 →

Sources

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