CVE-2026-16898: IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.
Other sources
IBM i could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM ito a version that resolves this vulnerability.Fixed in 7.6Patch SJ11094 - Upgrade
Upgrade
IBM ito a version that resolves this vulnerability.Fixed in 7.5Patch SJ11093 - Upgrade
Upgrade
IBM ito a version that resolves this vulnerability.Fixed in 7.4Patch SJ11095 - Upgrade
Upgrade
IBM ito a version that resolves this vulnerability.Fixed in 7.3Patch SJ11096
Event History
Frequently Asked Questions
What is the severity of CVE-2026-16898?
CVE-2026-16898 has a high severity rating of 7.8.
What types of vulnerabilities are associated with CVE-2026-16898?
CVE-2026-16898 involves multiple vulnerabilities in the Network Authentication Service of IBM i.
Who is affected by CVE-2026-16898?
CVE-2026-16898 affects users of IBM i versions 7.6, 7.5, 7.4, and 7.3.
What could an attacker achieve by exploiting CVE-2026-16898?
An attacker could change the ownership of arbitrary files due to improper validation of file paths.
How can I mitigate CVE-2026-16898?
To mitigate CVE-2026-16898, ensure that your IBM i system is updated to a patched version that addresses these vulnerabilities.