CVE-2026-100373OpenMetadata through 2.0.2 SSRF via Webhook URL Validation Bypass
Updated under an hour ago ()
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It affects open-metadata OpenMetadata. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 4.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
open-metadata OpenMetadata open_metadata:openmetadata (from the name) | through 2.0.2 | CNA record |
References
- https://gist.github.com/naif-alfardan/8a69e0648e11b07abe63f949346179c1exploit, third-party-advisory
- https://github.com/open-metadata/OpenMetadata/issues/32592issue-tracking
- https://github.com/open-metadata/OpenMetadata/commit/8f44482ac89bad9227df5b7f79beca2efe50c05fpatch
- https://github.com/open-metadata/OpenMetadata/blob/2.0.2-release/openmetadata-service/src/main/java/org/openmetadata/service/util/URLValidator.java#L34-L47technical-description
- https://github.com/open-metadata/OpenMetadataproduct
- https://www.vulncheck.com/advisories/openmetadata-through-2.0.2-ssrf-via-webhook-url-validation-bypassthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.