CVE-2026-13071: CWE-416: Use After Faree in MongoDB MongoDB Server
An authenticated user with read access can cause the mongod process to be terminated through certain aggregation expressions that execute server-side JavaScript. The issue involves improper memory handling during document processing.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-13071) in MongoDB Server involves a Use After Free condition (CWE-416) triggered when an authenticated user with read access executes specific aggregation expressions that run server-side JavaScript. The improper memory handling during document processing can cause the mongod process to terminate unexpectedly. The CVSS 4.0 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no user interaction, and high impact on availability. The affected versions are exactly 7.0, 8.0, 8.2.0, and 8.3.0. No patch or official remediation level has been disclosed yet.
Potential Impact
An attacker with authenticated read access can cause a denial of service by terminating the mongod process through crafted aggregation queries that execute server-side JavaScript. This disrupts database availability but does not indicate data confidentiality or integrity impact based on the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict authenticated read access to trusted users only and monitor for unusual aggregation queries that might exploit this vulnerability.
CVE-2026-13071: CWE-416: Use After Faree in MongoDB MongoDB Server
Description
An authenticated user with read access can cause the mongod process to be terminated through certain aggregation expressions that execute server-side JavaScript. The issue involves improper memory handling during document processing.
CVSS v4.0
Score 7.1high
Affected software
pkg:github/mongodb/mongoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-13071) in MongoDB Server involves a Use After Free condition (CWE-416) triggered when an authenticated user with read access executes specific aggregation expressions that run server-side JavaScript. The improper memory handling during document processing can cause the mongod process to terminate unexpectedly. The CVSS 4.0 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no user interaction, and high impact on availability. The affected versions are exactly 7.0, 8.0, 8.2.0, and 8.3.0. No patch or official remediation level has been disclosed yet.
Potential Impact
An attacker with authenticated read access can cause a denial of service by terminating the mongod process through crafted aggregation queries that execute server-side JavaScript. This disrupts database availability but does not indicate data confidentiality or integrity impact based on the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict authenticated read access to trusted users only and monitor for unusual aggregation queries that might exploit this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-06-23T18:00:15.210Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6123209c2644c7f89b2cc9
Added to database: 07/22/2026, 20:08:00 UTC
Last enriched: 07/22/2026, 20:22:46 UTC
Last updated: 07/23/2026, 02:51:54 UTC
Views: 3
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