Quick answers
- Is CVE-2026-122009 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122009 being exploited in the wild.
- How severe is CVE-2026-122009?
- High severity, with a CVSS score of 7.3, published 4 November 2026.
- Which products and versions are affected?
- DataLinkDC Dinky up to 1.2.5.
- Is there a fix for CVE-2026-122009?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-122009 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-122009?
- Check whether you run DataLinkDC Dinky at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in FlinkWebURITemplateProxyServlet.getNewTargetUri, where the _authority parameter is not properly validated, allowing manipulation to craft malicious requests. The Flink Web Proxy Endpoint component can be exploited remotely without authentication to perform server-side request forgery. A fix has been published as indicated by GHSA submission.
Affected products
- DataLinkDC Dinky up to 1.2.5
Timeline
- 2026-11-04: disclosed