CVE-2026-15435 IBM App Connect Enterprise is vulnerable to arbitrary file write vulnerability

What is CVE-2026-15435?

CVE-2026-15435 is a critical path traversal vulnerability in IBM App Connect Enterprise, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

Weakness: CWE-22

Which versions are affected by CVE-2026-15435?

It affects 1 product.

Products include Ibm App Connect Enterprise.

How do I fix CVE-2026-15435?

No fix has been published for CVE-2026-15435 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-15435 being exploited?

There is no known exploitation of CVE-2026-15435 in the wild and no public exploit code.

Other vulnerabilities in IBM App Connect Enterprise

• CVE-2024-22317 IBM App Connect Enterprise denial of service Critical 9.1
• CVE-2026-75624 IBM App Connect Enterprise is vulnerable to privilege escalation and Denial of Service High 8.8
• CVE-2026-14522 IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes to configuration settings High 8.8
• CVE-2026-81832 IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable to multiple CVEs High 7.7
• CVE-2026-12947 IBM App Connect Enterprise is vulnerable to Confidentiality disclosure on Discovery Connector nodes High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-q684-5x2c-2956.