CVE-2026-18699: CWE-476: NULL Pointer Dereference in MongoDB MongoDB Server
An issue in MongoDB Server's query planner could allow an authenticated user with read-level privileges to cause the server process to terminate unexpectedly by submitting a specially formed query against a collection with a text index. This could result in a denial of service, affecting connected clients and in-flight operations.
AI Analysis
Technical Summary
This vulnerability (CWE-476: NULL Pointer Dereference) exists in the query planner component of MongoDB Server. An authenticated user with read privileges can exploit this flaw by sending a specially formed query targeting a collection with a text index. The flaw causes the server process to crash, resulting in a denial of service condition. The affected versions explicitly include MongoDB Server versions 7.0, 8.0, and 8.3.0. There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes the MongoDB Server process to terminate unexpectedly, resulting in denial of service. This affects all connected clients and any in-flight operations, potentially disrupting availability of the database service. The impact is limited to denial of service; no information indicates data corruption or privilege escalation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting read-level access to trusted users and monitor for unusual query patterns targeting text indexes. No official fix or workaround has been documented at this time.
CVE-2026-18699: CWE-476: NULL Pointer Dereference in MongoDB MongoDB Server
Description
An issue in MongoDB Server's query planner could allow an authenticated user with read-level privileges to cause the server process to terminate unexpectedly by submitting a specially formed query against a collection with a text index. This could result in a denial of service, affecting connected clients and in-flight operations.
CVSS v4.0
Score 6.0medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-476: NULL Pointer Dereference) exists in the query planner component of MongoDB Server. An authenticated user with read privileges can exploit this flaw by sending a specially formed query targeting a collection with a text index. The flaw causes the server process to crash, resulting in a denial of service condition. The affected versions explicitly include MongoDB Server versions 7.0, 8.0, and 8.3.0. There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes the MongoDB Server process to terminate unexpectedly, resulting in denial of service. This affects all connected clients and any in-flight operations, potentially disrupting availability of the database service. The impact is limited to denial of service; no information indicates data corruption or privilege escalation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting read-level access to trusted users and monitor for unusual query patterns targeting text indexes. No official fix or workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-03T15:53:36.628Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b7422bf8831d539467f87
Added to database: 08/11/2026, 19:12:34 UTC
Last enriched: 08/11/2026, 19:27:55 UTC
Last updated: 08/11/2026, 22:59:39 UTC
Views: 6
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