How severe is CVE-2026-76798?

CVE-2026-76798 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-76798 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-76798?

CVE-2026-76798 affects Mongodb Mongosql Transition Readiness Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-76798?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-76798 published?

CVE-2026-76798 was published on 2026-08-28 and last updated on 2026-09-17.

CVE-2026-76798

CVE-2026-76798 is a medium-severity vulnerability in Mongodb Mongosql Transition Readiness Tool with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mongodb Mongosql Transition Readiness Tool
Published: 2026-08-28
Last modified: 2026-09-17

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.

Frequently asked questions

What is CVE-2026-76798?: 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.
How severe is CVE-2026-76798?: CVE-2026-76798 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-76798 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-76798?: CVE-2026-76798 affects Mongodb Mongosql Transition Readiness Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-76798?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-76798 published?: CVE-2026-76798 was published on 2026-08-28 and last updated on 2026-09-17.

References

https://www.mongodb.com/docs/sql-interface/changelog/

Affected products (1)

cpe:2.3:a:mongodb:mongosql_transition_readiness_tool:*:*:*:*:*:*:*:*

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