CVE-2026-17319: Multiple Vulnerabilities in IBM API Connect

Q: Which deployments are affected?

IBM API Connect V12 OnPrem versions 12.1.0.0 through 12.1.1.2 are identified as affected.

Q: What level of access does an attacker need?

An attacker must be remote and authenticated. The issue involves authorization decisions that rely on client-supplied information, allowing unauthorized tool-configuration changes.

Q: What is the practical impact?

An authenticated attacker could modify tool configuration and disrupt service, resulting in a denial of service.

Published Nov 5, 2026

Updated

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to modify tool configuration and cause a denial of service due to improper authorization. Information supplied by the client is relied on when deciding what a user is allowed to do, which could allow unauthorized changes that disrupt service.

Other sources

IBM API Connect could allow a remote authenticated attacker to modify tool configuration and cause a denial of service due to improper authorization. Information supplied by the client is relied on when deciding what a user is allowed to do, which could allow unauthorized changes that disrupt service.

— IBM

Affected Software

1 affected component

IBM API Connect V12 OnPrem<=v12.1.0.0 - v12.1.1.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade IBM API Connect to a version that resolves this vulnerability.
Fixed in 12.1.1.3

Event History

Nov 5, 2026

CVE Published

via IBM·12:00 AM

Data Sourced

via IBM·12:00 AM

DescriptionAffected Software

Nov 7, 2026

CVE Published

via MITRE·04:33 AM

Data Sourced

via MITRE·04:33 AM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·05:18 AM

DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

IBM-7295635

Frequently Asked Questions

Which deployments are affected?

IBM API Connect V12 OnPrem versions 12.1.0.0 through 12.1.1.2 are identified as affected.

What level of access does an attacker need?

An attacker must be remote and authenticated. The issue involves authorization decisions that rely on client-supplied information, allowing unauthorized tool-configuration changes.

What is the practical impact?

An authenticated attacker could modify tool configuration and disrupt service, resulting in a denial of service.

CVE-2026-17319: Multiple Vulnerabilities in IBM API Connect

Other sources

Affected Software

Remediation

Event History

Parent advisories

Frequently Asked Questions

Which deployments are affected?

What level of access does an attacker need?

What is the practical impact?

Company

Resources

Contact

Frequently Asked Questions

Which deployments are affected?

What level of access does an attacker need?

What is the practical impact?