Vulnerability · Published Oct 22, 2026 · Assigned by KNIME
CVE-2026-115517Unrestricted network access between execution contexts in KNIME Business Hub
Medium 6.4
In plain English
A medium-severity security flaw in KNIME Business Hub from KNIME. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Official description
Unrestricted network access between execution contexts in KNIME Business Hub before version 1.19.0 allows an authenticated remote user to access open network ports on executors in different execution contexts. This only poses a security issue if the IP address of the attacked executor is know and there are open network ports that provided access without further authentication. By default no network ports are open. However, depending on the running workflows, ports may be opened and provide an attack surface. As a workaround, network policies can be created manually.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| KNIME | KNIME Business Hub | 0 – before 1.19.0 |
Weakness: CWE-653 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:H