CVE-2026-100373mediumCWE-918

CVE-2026-100373: medium-severity vulnerability in open-metadata OpenMetadata

OpenMetadata through 2.0.2 SSRF via Webhook URL Validation Bypass

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 5.1epss 0.3%
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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Affected products
open-metadata · OpenMetadata
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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