CVE-2026-18099: IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to execute arbitrary script code due to…
CVE-2026-18099 · Severity: high · CVSS 8.9 · Published 2026-08-12
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to execute arbitrary script code due to improper neutralization of user-controlled input.
No. Junglewise Threat Intelligence has no report of CVE-2026-18099 being exploited in the wild.
How severe is CVE-2026-18099?
High severity, with a CVSS score of 8.9, published 12 August 2026.
Which products and versions are affected?
IBM I. The advisory does not name versions.
Is there a fix for CVE-2026-18099?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-18099?
Check whether you run IBM I. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.