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TI-2020-06412 Aliases CVE-2020-7929GHSA-4jpm-qv63-23qh

Specially crafted regex query can cause DoS

Priority LOW 31CWE-185Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

A user authorized to perform database queries may trigger denial of service by issuing specially crafted query contain a type of regex. This issue affects MongoDB Server v3.6 versions prior to 3.6.21 and MongoDB Server v4.0 versions prior to 4.0.20.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.013 70th percentileScored 2026-11-07
Fix Partial MongoDB Server (MongoDB Inc.): 3.6.21, 4.0.20Red Hat: 3 without a fix

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 Server3.6 to before 3.6.21; 4.0 to before 4.0.203.6.21, 4.0.20Patch availableCNA
  • MongoDB Server VendorMongoDB Affected 3.6 to before 3.6.21; 4.0 to before 4.0.20 Fixed in 3.6.21, 4.0.20 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*3.6.0 to before 3.6.21; 4.0.0 to before 4.0.20VulnerableMongoDB
  • cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* Versions 3.6.0 to before 3.6.21; 4.0.0 to before 4.0.20 Vulnerable ·MongoDB

Remediation

  • Fix · CNA MongoDB Server (MongoDB Inc.) Fixed in 3.6.21, 4.0.20

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)AffectedNo fix planned: Out of support scope
Red Hat OpenStack Platform 10 (Newton)AffectedNo fix planned: Out of support scope
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Not affected: 1 product
  • Red Hat Update Infrastructure 3 for Cloud Providers

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-7929
  2. 2026-10-03 Alias added: GHSA-4jpm-qv63-23qh

References

Patch 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