Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 ND Collective Controller is affected by a path-segment injection vulnerability in the collective routing mechanism.
Published: 2026-07-28
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a path‑segment injection in the collective routing mechanism of IBM WebSphere Application Server Liberty, which can allow an attacker to modify routing paths and potentially execute arbitrary code on the server.

Affected Systems

The affected products are IBM WebSphere Application Server Liberty versions 17.0.0.3 through 26.0.0.8 when the collectiveController‑1.0 feature is enabled. The official advisory covers all releases in this range and recommends applying fixes for APAR DT496531 or upgrading to Liberty Fix Pack 26.0.0.9 or later.

Risk and Exploitability

The CVSS score is 7.5, indicating a high severity issue. The EPSS score is less than 1 %, suggesting a very low current exploitation probability. It is not listed in the CISA KEV catalog. Exploitation would likely involve sending specially crafted path segments to the collective controller over the network. Therefore the risk remains moderate, but deploying the recommended fixes is strongly advised to eliminate the possibility of remote code execution.

Generated by OpenCVE AI on August 3, 2026 at 14:22 UTC.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT496531. To determine if a feature is enabled for IBM WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 .  For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.8 using the collectiveController-1.0 feature(s):  · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT496531 https://www.ibm.com/support/pages/node/7281416 --OR-- · Apply Liberty Fix Pack 26.0.0.9 or later (targeted availability 3Q2026).  Additional interim fixes may be available and linked off the interim fix download page.

OpenCVE Recommended Actions

  • Upgrade to the minimal fix‑pack levels required for the interim fix.
  • Apply the interim fix that resolves APAR DT496531.
  • If the interim fix is not available, upgrade to Liberty Fix Pack 26.0.0.9 or a later release.

Generated by OpenCVE AI on August 3, 2026 at 14:22 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 29 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 28 Jul 2026 20:45:00 +0000

Type Values Removed Values Added
Description IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 ND Collective Controller is affected by a path-segment injection vulnerability in the collective routing mechanism.
Title IBM WebSphere Application Server Liberty is affected by a remote code execution and path-segment injection vulnerability
First Time appeared Ibm
Ibm websphere Application Server Liberty
Weaknesses CWE-22
CPEs cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.8:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm websphere Application Server Liberty
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Subscriptions

Ibm Websphere Application Server Websphere Application Server Liberty
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-07-29T12:38:22.606Z

Reserved: 2026-07-09T15:35:23.531Z

Link: CVE-2026-15280

cve-icon Vulnrichment

Updated: 2026-07-29T12:38:16.349Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-28T21:17:27.640

Modified: 2026-08-05T19:51:37.300

Link: CVE-2026-15280

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T14:30:18Z

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')