A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
Metrics
Affected Vendors & Products
References
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| https://jira.mongodb.org/browse/SERVER-128125 |
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History
Fri, 12 Jun 2026 14:30:00 +0000
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Fri, 12 Jun 2026 03:45:00 +0000
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Mongodb
Mongodb mongodb |
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Mongodb
Mongodb mongodb |
Fri, 12 Jun 2026 02:15:00 +0000
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| Description | A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash. | |
| Title | Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion | |
| Weaknesses | CWE-787 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: mongodb
Published: 2026-06-12T01:57:32.014Z
Updated: 2026-06-12T13:28:43.500Z
Reserved: 2026-06-10T18:54:51.125Z
Link: CVE-2026-11933
Updated: 2026-06-12T13:28:39.655Z
Status : Awaiting Analysis
Published: 2026-06-12T02:16:38.527
Modified: 2026-06-12T16:06:17.027
Link: CVE-2026-11933
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