CVE-2026-115494: CSRF protection could be tricked by forged X-Forwarded-Host header in KNIME Business Hub

Severity: medium (CVSS 5.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-22 · updated 2026-10-22
Weakness: CWE-352

Description

A flaw in the cross-site request forgery (CSRF) prevention of KNIME Business Hub prior to version 1.19.0 allows an authenticated attacker to perform a CSRF attack with passive user interaction. This means the state of a resource could be changed without the user noticing. As a workaround, an API gateway for firewall in front of KNIME Business Hub could remove the X-Forwaded-For header from all incoming requests.

Affected products

KNIME Business Hub: before 1.19.0 — fixed in 1.19.0

How to fix

Upgrade to a fixed version: KNIME Business Hub 1.19.0. Check the vendor advisory for mitigations.

References

https://www.knime.com/security/advisories

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