# CVE-2026-115519: KNIME Business Hub missing security attributes on sensitive cookies

Source: https://junglewise.ai/threats/cve-2026-115519-missing-security-attributes-on-sensitive-cookies-in-knime  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-22. Updated: 2026-10-22  
License: CC BY 4.0 with a link back

CVE-2026-115519 · Severity: info · Published 2026-10-22

KNIME Business Hub is a web-based platform for deploying and managing data analytics workflows. Missing security attributes on session cookies in versions before 1.19.0 could allow attackers to hijack user sessions if they exploit other vulnerabilities like cross-site scripting or perform man-in-the-middle attacks. User sessions and the workflows they access could be compromised without a direct authentication mechanism.

Technologies: [Knime Business Hub](https://junglewise.ai/threats/technologies/business-hub). Vendors: [Knime](https://junglewise.ai/threats/vendors/knime).

## Quick answers

**Is CVE-2026-115519 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-115519 being exploited in the wild.

**How severe is CVE-2026-115519?** Informational severity, published 22 October 2026.

**Which products and versions are affected?** Knime Business Hub before 1.19.0.

**Is there a fix for CVE-2026-115519?** Yes: fixed in KNIME Business Hub 1.19.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-115519 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-115519?** Check whether you run Knime Business Hub 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.

## How to fix

- Fixed in KNIME Business Hub 1.19.0

## Technical details

The vulnerability involves missing security attributes (such as HttpOnly and Secure flags) on sensitive cookies used to maintain user sessions in KNIME Business Hub. An unauthenticated attacker can compromise session cookies when combined with secondary vulnerabilities like XSS or a network-level MITM attack. The flaw requires pre-existing security issues or network access to be exploited but affects all sessions if conditions align.

## Affected products

- KNIME Business Hub before 1.19.0

## Timeline

- 2026-10-22: disclosed

## References

- [https://www.knime.com/security/advisories](https://www.knime.com/security/advisories)

## Related threats

- [KNIME Business Hub unrestricted network access between execution contexts](https://junglewise.ai/threats/cve-2026-115517-unrestricted-network-access-between-execution-contexts-in-knime)
- [KNIME Business Hub SaaS incorrect authorization in account information](https://junglewise.ai/threats/cve-2026-115516-an-incorrect-authorization-issue-exposes-basic-account)
- [KNIME Business Hub missing authorization check in DataApp links](https://junglewise.ai/threats/cve-2026-115502-a-missing-authorization-check-allows-anyone-having-access-to-a)
- [KNIME Business Hub information disclosure in catalog](https://junglewise.ai/threats/cve-2026-115496-overly-informative-error-messages-in-the-catalog-functionality)
- [KNIME Business Hub CSRF protection bypass via forged header](https://junglewise.ai/threats/cve-2026-115494-a-flaw-in-the-cross-site-request-forgery-csrf-prevention-of)