TI-2026-11104 Aliases CVE-2026-13055 GHSA-c3m4-h7px-8423

Server crash via aggregation pipeline expression with compound wildcard index specification

LOW 31CWE-617Published 2026-07-22 · Updated 2026-07-23

Key facts

Attack vector: Network
Privileges required: Low
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

The `$_internalIndexKey` aggregation expression can be used by any authenticated user to crash a MongoDB server (mongod). The expression fails to handle compound wildcard index specifications, triggering an internal consistency check that aborts the server process. The user must be able to run an aggregation pipeline.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00402 34th percentileScored 2026-11-07

Fix Fixed MongoDB Server (MongoDB): 7.0.39, 8.0.28, 8.2.12 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
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	7.0 to before 7.0.39; 8.0 to before 8.0.28; 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7	7.0.39, 8.0.28, 8.2.12, 8.3.7	Patch available	CNA

MongoDB Server VendorMongoDB Affected 7.0 to before 7.0.39; 8.0 to before 8.0.28; 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7 Fixed in 7.0.39, 8.0.28, 8.2.12, 8.3.7 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mongodb:mongodb:::::-:::*	7.0.0 to before 7.0.39; 8.0.0 to before 8.0.28; 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7	Vulnerable	MongoDB

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* Versions 7.0.0 to before 7.0.39; 8.0.0 to before 8.0.28; 8.2.0 to before 8.2.12; 8.3.0 to before 8.3.7 Vulnerable ·MongoDB

Remediation

Fix · CNA MongoDB Server (MongoDB) Fixed in 7.0.39, 8.0.28, 8.2.12, 8.3.7

Fixed in the same release

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

Release · 2026-07-22
MongoDB Server 7.0.39, 8.0.28 and 2 more versions
15 records Highest priority Priority MEDIUM 1 MEDIUM, 14 LOW
Other records, highest priority first
- TI-2026-11121 MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory CorruptionPriority MEDIUM 42
- TI-2026-11108 Improper Validation of Client-Supplied Command Parameters Allowing Role-Based Access Control BypassPriority LOW 39
- TI-2026-11123 Awaitable Hello Command in Exhaust Mode Unthrottled Response Loop Leading to Denial of ServicePriority LOW 37
Show all 15 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-13055
2026-10-03 Alias added: GHSA-c3m4-h7px-8423

References

Advisory 1

https://jira.mongodb.org/browse/SERVER-123081

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-2026-56628 Reachable assertion in MongoDB Server 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

See all 187 →

Sources

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