CVE-2026-11806: IBM WebSphere Application Server Liberty is affected by a an arbitrary file read vulnerability

Published Jun 23, 2026
·
Updated

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled.

Other sources

IBM WebSphere Application Server Liberty is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled.

— IBM

Affected Software

4 affected components
IBM WebSphere Application Server Liberty>=17.0.0.3<=26.0.0.6
IBM WebSphere Application Server>=17.0.0.3<26.0.0.7
IBM PowerVM Novalink<=2.2.02.2.12.2.1.1
IBM PowerVM Novalink<=2.3.02.3.0.12.3.12.3.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM WebSphere Application Server Liberty to a version that resolves this vulnerability.

    Fixed in 26.0.0.7Patch PH71719
  2. Upgrade

    Upgrade IBM WebSphere Application Server Liberty to a version that resolves this vulnerability.

    Patch PH71719

Event History

Jun 30, 2026
CVE Published
via MITRE·07:43 PM
Data Sourced
via MITRE·07:43 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeaknessAffected Software
Jul 16, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-11806?

CVE-2026-11806 has a high severity rating of 7.5.

2

How do I fix CVE-2026-11806?

To fix CVE-2026-11806, you should upgrade to IBM WebSphere Application Server Liberty version 26.0.0.7 or later.

3

What systems are affected by CVE-2026-11806?

CVE-2026-11806 affects IBM WebSphere Application Server Liberty versions 17.0.0.3 through 26.0.0.6 with the restConnector-2.0 feature enabled.

4

What is the nature of the vulnerability in CVE-2026-11806?

CVE-2026-11806 is an arbitrary file read vulnerability that could allow unauthorized access to files on the server.

5

What is the published date of CVE-2026-11806?

CVE-2026-11806 was published on June 23, 2026.

Company

Resources

Contact

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