CVE-2026-1561: IBM WebSphere Application Server Liberty Server-Side Request Forgery

Published Mar 24, 2026
·
Updated

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty is vulnerable to server-side request forgery (SSRF). This may allow remote attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Affected Software

9 affected components
IBM WebSphere Application Server Liberty>=17.0.0.3<=26.0.0.3
All of the following
IBM WebSphere Application Server>=17.0.0.3<26.0.0.4
Any of the following
Apple macOS
IBM AIX
IBM i
IBM Z\/os
Linux Linux kernel
Microsoft Windows
IBM watsonx.data intelligence<=5.2.2, 5.3.0, 5.3.1, 5.3.1-patch-1

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 26.0.0.4
  2. Upgrade

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

    Patch PH70017

Event History

Mar 25, 2026
CVE Published
via MITRE·08:10 PM
Data Sourced
via MITRE·08:10 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 24, 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-2026-1561?

CVE-2026-1561 is considered a critical vulnerability due to its potential for unauthorized access and exploitation.

2

How do I fix CVE-2026-1561?

To mitigate CVE-2026-1561, upgrade IBM WebSphere Application Server Liberty to version 26.0.0.4 or later.

3

What type of attack is possible with CVE-2026-1561?

CVE-2026-1561 allows for server-side request forgery (SSRF), enabling attackers to send unauthorized requests.

4

What versions of IBM WebSphere Application Server Liberty are affected by CVE-2026-1561?

CVE-2026-1561 affects versions 17.0.0.3 through 26.0.0.3 of IBM WebSphere Application Server Liberty.

5

Is CVE-2026-1561 exploitable remotely?

Yes, CVE-2026-1561 is exploitable remotely, allowing attackers to potentially misuse the application server.

Company

Resources

Contact

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