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TI-2026-07222 Aliases CVE-2026-8201GHSA-r8cx-9wfm-r3m7

Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields

Priority LOW 26CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · Low · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query. This issue impacts MongoDB Server’s mongocryptd component 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 0.00129 2nd 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

VendorProductAffected versionsFixed inStatusSource
MongoDBMongoDB Server7.0 to before 7.0.34; 8.0 to before 8.0.23; 8.2 to before 8.2.9; 8.3 to before 8.3.27.0.34, 8.0.23, 8.2.9, 8.3.2Patch availableCNA
  • 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

CPEVersionsRoleVendor
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 8.3.2VulnerableMongoDB
  • 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 ·

    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-2026-07223 Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operatorsPriority LOW 24
    • TI-2026-07221 Schema validation log messages may not redact user dataPriority LOW 21
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8201
  2. 2026-10-03 Alias added: GHSA-r8cx-9wfm-r3m7

References

Advisory 1

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences