TI-2026-07223 Aliases CVE-2026-8202 GHSA-p4m7-wm4c-77hf

Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators

LOW 24CWE-770Published 2026-05-13 · Updated 2026-05-13

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 · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

Using a densely populated chars mask and a large input string in the MongoDB aggregation operators $trim, $ltrim, and $rtrim, an authenticated user with aggregation permissions can pin CPU utilization at 100% for an extended period of time. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00263 18th percentileScored 2026-11-07

Fix Fixed MongoDB Server (MongoDB, Inc.): 7.0.34, 8.0.23, 8.2.9 +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 7.0.34; 8.0 to before 8.0.23; 8.2 to before 8.2.9; 8.3 to before 8.3.2	7.0.34, 8.0.23, 8.2.9, 8.3.2	Patch available	CNA

MongoDB Server VendorMongoDB Affected 7.0 to before 7.0.34; 8.0 to before 8.0.23; 8.2 to before 8.2.9; 8.3 to before 8.3.2 Fixed in 7.0.34, 8.0.23, 8.2.9, 8.3.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mongodb:mongodb::::::::	7.0.0 to before 7.0.34; 8.0.0 to before 8.0.23; 8.2.0 to before 8.2.9; 8.3.0 to before 8.3.2	Vulnerable	MongoDB

cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.34; 8.0.0 to before 8.0.23; 8.2.0 to before 8.2.9; 8.3.0 to before 8.3.2 Vulnerable ·MongoDB

Remediation

Fix · CNA MongoDB Server (MongoDB, Inc.) Fixed in 7.0.34, 8.0.23, 8.2.9, 8.3.2

Fixed in the same release

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

Release · 2026-05-13
MongoDB Server 7.0.34, 8.0.23 and 2 more versions
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-07220 Post-auth memory exhaustion via bitwise match expressionsPriority LOW 31
- TI-2026-07222 Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted FieldsPriority LOW 26
- TI-2026-07221 Schema validation log messages may not redact user dataPriority LOW 21
Show all 4 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-8202
2026-10-03 Alias added: GHSA-p4m7-wm4c-77hf

References

Advisory 1

https://jira.mongodb.org/browse/SERVER-120668

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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