CVE-2026-76797
MEDIUMDescription
The MongoSQL Transition Readiness Tool writes database and collection names into its generated CSV reports without neutralizing leading characters that spreadsheet applications treat as formulas. A user with write privileges on the cluster can choose a namespace name that is later evaluated as a formula when an operator opens the generated report in a spreadsheet application, which may result in unintended disclosure of report contents or execution of external content on the operator's workstation. Generating a report for the affected namespace and opening it in a spreadsheet application is required.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 16% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1236 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2021-33256 | High | 8.8 | 79% | - | - |
| CVE-2018-11652 | Critical | 9.8 | 24% | - | Fix |
| CVE-2020-36962 | Critical | 9.8 | 11% | - | - |
| CVE-2019-12765 | Critical | 9.8 | 10% | - | - |
| CVE-2019-14749 | High | 8.8 | 9.6% | - | Fix |
| CVE-2020-9372 | High | 7.8 | 8.6% | - | Fix |
Common questions
How do I fix CVE-2026-76797?
Upgrade mongosql transition readiness tool to 1.1.3 or later.
Is CVE-2026-76797 being actively exploited?
Not that we know of. CVE-2026-76797 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.25% is the estimated probability that it will be exploited in the next 30 days. That is higher than 16% of all scored CVEs.
How severe is CVE-2026-76797?
CVE-2026-76797 has a CVSS v3 base score of 6.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-76797 affect?
Published advisories record a fix for mongosql transition readiness tool (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-17.