CVE-2026-18235: IBM i is Affected By Multiple Vulnerabilities in Navigator for i

Published Aug 11, 2026
·
Updated

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to execute arbitrary Control Language commands due to insufficient input validation.

Other sources

IBM i could allow a remote authenticated attacker to execute arbitrary Control Language commands due to insufficient input validation.

— IBM

Affected Software

5 affected components
IBM i<=7.6
IBM i<=7.5
IBM i<=7.4
IBM i<=7.3
IBM i>=7.3<=7.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Fixed in 7.6Patch SJ10887
  2. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Fixed in 7.5Patch SJ10888
  3. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Fixed in 7.4Patch SJ10890
  4. Upgrade

    Upgrade IBM i to a version that resolves this vulnerability.

    Fixed in 7.3Patch SJ10891

Event History

Aug 11, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Aug 12, 2026
CVE Published
via MITRE·05:21 PM
Data Sourced
via MITRE·05:21 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·06:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-18235?

The severity of CVE-2026-18235 is rated as high with a score of 8.3.

2

How do I fix CVE-2026-18235?

To fix CVE-2026-18235, ensure that you apply the latest security updates provided by IBM for the affected versions of IBM i.

3

What systems are affected by CVE-2026-18235?

CVE-2026-18235 affects IBM i versions 7.6, 7.5, 7.4, and 7.3.

4

What type of attacks can CVE-2026-18235 facilitate?

CVE-2026-18235 can facilitate remote authenticated attackers to execute arbitrary Control Language commands.

5

What is the underlying issue in CVE-2026-18235?

The underlying issue in CVE-2026-18235 is insufficient input validation.

Company

Resources

Contact

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