CVE-2026-18715: IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to improper processing of XML external entities.
Other sources
IBM i could allow a remote authenticated attacker to obtain sensitive information due to improper processing of XML external entities.
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM i 7.6to a version that resolves this vulnerability.Fixed in 7.6Patch SJ10874 - Upgrade
Upgrade
IBM i 7.5to a version that resolves this vulnerability.Fixed in 7.5Patch SJ10875 - Upgrade
Upgrade
IBM i 7.4to a version that resolves this vulnerability.Fixed in 7.4Patch SJ10876 - Upgrade
Upgrade
IBM i 7.3to a version that resolves this vulnerability.Fixed in 7.3Patch SJ10877
Event History
Frequently Asked Questions
What is the severity of CVE-2026-18715?
The severity of CVE-2026-18715 is rated as medium with a score of 6.5.
How do I fix CVE-2026-18715?
To fix CVE-2026-18715, ensure you are running the latest patched version of IBM i and WebSphere Application Server Liberty.
What systems are affected by CVE-2026-18715?
CVE-2026-18715 affects IBM i versions 7.3, 7.4, 7.5, and 7.6.
What type of vulnerability is CVE-2026-18715?
CVE-2026-18715 is categorized under improper processing of XML external entities, also known as XXE.
Can CVE-2026-18715 lead to data exposure?
Yes, CVE-2026-18715 can allow a remote authenticated attacker to obtain sensitive information.