CVE-2026-18098: IBM i is Affected By XML injection flaw 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 obtain sensitive information and compromise system integrity due to an XML injection flaw.

Other sources

IBM i could allow a remote authenticated attacker to obtain sensitive information and compromise system integrity due to an XML injection flaw.

— IBM

Affected Software

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

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
  5. Compensating control

    IBM i Release5770-SS1 Option 3 is referenced as a mitigation context; address the XML injection flaw by applying the listed fixes/patches for the affected IBM i releases now.

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·04:50 PM
Data Sourced
via MITRE·04:50 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·05:17 PM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-18098?

The severity of CVE-2026-18098 is rated high with a score of 8.1.

2

How does CVE-2026-18098 affect IBM i systems?

CVE-2026-18098 affects IBM i versions 7.6, 7.5, 7.4, and 7.3 by allowing a remote authenticated attacker to exploit an XML injection flaw.

3

What types of information can be compromised by CVE-2026-18098?

CVE-2026-18098 could allow an attacker to obtain sensitive information and compromise system integrity.

4

How can I mitigate the risks associated with CVE-2026-18098?

To mitigate the risks associated with CVE-2026-18098, apply the recommended patches and updates from IBM for affected IBM i versions.

5

Who is affected by CVE-2026-18098?

Remote authenticated users of IBM i systems running versions 7.6, 7.5, 7.4, and 7.3 are affected by CVE-2026-18098.

Company

Resources

Contact

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