CVE-2026-76798

MongoSQL Transition Readiness Tool Improper Output Encoding in Generated HTML Reports

Published Aug 28, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
The MongoSQL Transition Readiness Tool writes query text and user names read from BI Connector log files into its generated HTML report without encoding them for that output context. A user able to issue queries through the BI Connector can influence log content so that markup supplied in a query is interpreted by the browser when an operator later generates and opens the report, which may disclose other users' logged query text and user names to an external party or present misleading content to the operator. Generating a report over logs containing the affected entries and opening that report in a browser is required.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mongodb mongosql Transition Readiness Tool
CPEs cpe:2.3:a:mongodb:mongosql_transition_readiness_tool:*:*:*:*:*:*:*:*
Vendors & Products Mongodb mongosql Transition Readiness Tool
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb bi Connector Transition Readiness Report
Vendors & Products Mongodb
Mongodb bi Connector Transition Readiness Report
Type Values Removed Values Added
Description The MongoSQL Transition Readiness Tool writes query text and user names read from BI Connector log files into its generated HTML report without encoding them for that output context. A user able to issue queries through the BI Connector can influence log content so that markup supplied in a query is interpreted by the browser when an operator later generates and opens the report, which may disclose other users' logged query text and user names to an external party or present misleading content to the operator. Generating a report over logs containing the affected entries and opening that report in a browser is required.
Title MongoSQL Transition Readiness Tool Improper Output Encoding in Generated HTML Reports
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mongodb
Published
Updated
Aug 31, 2026, 6:42 PM
Reserved
Aug 19, 2026, 7:18 PM
Status
Analyzed
Published
Aug 28, 2026, 8:19 PM
Modified
Sep 17, 2026, 2:37 PM