CVE-2026-13078: CWE-862: Missing Authorization in MongoDB MongoDB Server
A vulnerability was discovered in MongoDB Server where the server-side MozJS scripting engine unconditionally registered a module loading hook that enables JavaScript calls to read arbitrary files from the host filesystem using the mongod process's privileges. An authenticated user could exploit this through crafted aggregation pipeline commands to read sensitive files accessible to the MongoDB server process.
AI Analysis
Technical Summary
This vulnerability arises from the MongoDB Server's MozJS scripting engine unconditionally registering a module loading hook, enabling JavaScript calls to read arbitrary files on the host filesystem using the mongod process's privileges. An authenticated attacker can exploit this by sending crafted aggregation pipeline commands, thereby reading sensitive files accessible to the MongoDB server process. The issue is tracked as CWE-862 (Missing Authorization). The CVSS 4.0 base score is 6.3, indicating medium severity. Affected versions are exactly 7.0, 8.0, 8.2.0, and 8.3.0. There is no vendor advisory or patch information available at this time.
Potential Impact
An authenticated user with privileges to run aggregation pipeline commands can read arbitrary files on the host filesystem with the permissions of the mongod process. This could lead to unauthorized disclosure of sensitive information stored on the server. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to authenticated users and limit privileges of the mongod process to minimize potential impact.
CVE-2026-13078: CWE-862: Missing Authorization in MongoDB MongoDB Server
Description
A vulnerability was discovered in MongoDB Server where the server-side MozJS scripting engine unconditionally registered a module loading hook that enables JavaScript calls to read arbitrary files from the host filesystem using the mongod process's privileges. An authenticated user could exploit this through crafted aggregation pipeline commands to read sensitive files accessible to the MongoDB server process.
CVSS v4.0
Score 6.3medium
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 arises from the MongoDB Server's MozJS scripting engine unconditionally registering a module loading hook, enabling JavaScript calls to read arbitrary files on the host filesystem using the mongod process's privileges. An authenticated attacker can exploit this by sending crafted aggregation pipeline commands, thereby reading sensitive files accessible to the MongoDB server process. The issue is tracked as CWE-862 (Missing Authorization). The CVSS 4.0 base score is 6.3, indicating medium severity. Affected versions are exactly 7.0, 8.0, 8.2.0, and 8.3.0. There is no vendor advisory or patch information available at this time.
Potential Impact
An authenticated user with privileges to run aggregation pipeline commands can read arbitrary files on the host filesystem with the permissions of the mongod process. This could lead to unauthorized disclosure of sensitive information stored on the server. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to authenticated users and limit privileges of the mongod process to minimize potential impact.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-06-23T18:00:23.432Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6123219c2644c7f89b2d35
Added to database: 07/22/2026, 20:08:01 UTC
Last enriched: 07/22/2026, 20:23:06 UTC
Last updated: 07/23/2026, 02:51:54 UTC
Views: 10
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