CVE-2026-15435: IBM App Connect Enterprise

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• IBM App Connect Enterprise: from 12.0.1.0, before 12.0.12.28 (fixed in 12.0.12.28); from 13.0.1.0, before 13.0.8.0 (fixed in 13.0.8.0)

Published 2026-07-30. Last modified 2026-08-05.