CVE-2026-115519 KNIME CVE debrief

Who should care

Defenders responsible for KNIME Business Hub deployments should assess exposure and prioritize verification of user session security, especially in environments where KNIME Business Hub is used. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify user session security and consider upgrading to version 1.19.0 or later.

Why it matters

Defenders should assess exposure to missing security attributes on sensitive cookies in KNIME Business Hub before version 1.19.0, as it could allow session compromise if other vulnerabilities are present.

• Potential session compromise if other vulnerabilities are present
• Need to verify user session security in KNIME Business Hub deployments
• Possible exposure to unauthenticated remote attacks
• Requires assessment of cross-site scripting and man-in-the-middle attack risks

Technical summary

The vulnerability involves missing security attributes on sensitive cookies in KNIME Business Hub before version 1.19.0, which could allow an unauthenticated remote attacker to compromise user sessions if other security issues are present. This issue requires defenders to assess exposure and prioritize verification of user session security, especially in environments where KNIME Business Hub is used, and to consider the impact of potential cross-site scripting vulnerabilities or man-in-the-middle attacks. Affected product deployments should be reviewed for exposure, and compensating controls should be considered while remediation is scheduled.

Defensive priority

Defenders should assess exposure and prioritize verification of user session security, especially in environments where KNIME Business Hub is used.

Recommended defensive actions

• Assess exposure of KNIME Business Hub instances to unauthenticated remote attackers
• Verify user session security and consider upgrading to version 1.19.0 or later
• Monitor for potential cross-site scripting vulnerabilities or man-in-the-middle attacks
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The KNIME security advisory is referenced but not detailed in the corpus. Evidence is limited; defenders should verify user session security and assess exposure to missing security attributes on sensitive cookies in KNIME Business Hub before version 1.19.0. Limited source detail suggests explicit evidence-limit language and defensive verification tasks are required.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.