High severity8.1NVD Advisory· Published Sep 4, 2026· Updated Sep 8, 2026
CVE-2026-18221
CVE-2026-18221
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to gain unauthorized access due to improper validation of client-supplied authentication parameters.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7286186nvdPatchVendor Advisory
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