Vulnerability Description
OpenMetadata through 2.0.2 contains a server-side request forgery vulnerability in the URLValidator.validateURL function that fails to properly resolve DNS hostnames and validate internal addresses. Users permitted to create or update EventSubscription can set webhook destinations to internal hosts, allowing the server to send requests to private networks and cloud metadata endpoints while returning HTTP status codes that enable blind SSRF probing.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://gist.github.com/naif-alfardan/8a69e0648e11b07abe63f949346179c1
- https://github.com/open-metadata/OpenMetadata
- https://github.com/open-metadata/OpenMetadata/blob/2.0.2-release/openmetadata-se
- https://github.com/open-metadata/OpenMetadata/commit/8f44482ac89bad9227df5b7f79b
- https://github.com/open-metadata/OpenMetadata/issues/32592
- https://www.vulncheck.com/advisories/openmetadata-through-2.0.2-ssrf-via-webhook
FAQ
What is CVE-2026-100373?
CVE-2026-100373 is a vulnerability with a CVSS score of 4.1 (MEDIUM). OpenMetadata through 2.0.2 contains a server-side request forgery vulnerability in the URLValidator.validateURL function that fails to properly resolve DNS hostnames and validate internal addresses. U...
How severe is CVE-2026-100373?
CVE-2026-100373 has been rated MEDIUM with a CVSS base score of 4.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100373?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.