Description
IBM WebSphere Application Server 9.0, and 8.5 could allow a remote attacker to inject forged log entries into the server's administrative log.
Published: 2026-09-14
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Log Injection
Action: Patch Now
AI Analysis

Impact

IBM WebSphere Application Server 9.0 and 8.5 allow an attacker to inject forged entries into the administrative log, which is a CWE-117 (Log Injection) flaw that compromises log integrity and can mask malicious activity. The flaw does not grant code execution or direct system access.

Affected Systems

Vulnerable versions are IBM WebSphere Application Server 9.0.0.0 through 9.0.5.28 and 8.5.0.0 through 8.5.5.30. Applying Fix Pack 9.0.5.29 SB0030823 or later, or Fix Pack 8.5.5.31 or later, eliminates the issue.

Risk and Exploitability

The CVSS score of 4.8 and an EPSS below 1% indicate moderate severity and a low likelihood of exploitation. The vulnerability is listed as a CWE-117 (Log Injection) flaw and is not listed in CISA KEV. It is likely to be exercised remotely by sending crafted administrative requests that bypass log‑entry validation.

Generated by OpenCVE AI on September 20, 2026 at 23:42 UTC.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below. For IBM WebSphere Application Server traditional: For V9.0.0.0 through 9.0.5.28: · Apply Fix Pack 9.0.5.29 SB0030823 (availability September 2026) or later fix pack.  For V8.5.0.0 through 8.5.5.30: · Apply Fix Pack 8.5.5.31 https://www.ibm.com/support/pages/node/7285869 (availability September 2026) or later fix pack.

OpenCVE Recommended Actions

  • Apply IBM WebSphere Application Server fix pack 9.0.5.29 SB0030823 or later
  • Apply IBM WebSphere Application Server fix pack 8.5.5.31 or later
  • Restrict network access to the administrative console and APIs to trusted IP ranges
  • Enable monitoring of administrative logs to detect anomalous entries

Generated by OpenCVE AI on September 20, 2026 at 23:42 UTC.

Tracking

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Advisories

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History

Tue, 15 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description IBM WebSphere Application Server 9.0, and 8.5 could allow a remote attacker to inject forged log entries into the server's administrative log.
Title IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
First Time appeared Ibm
Ibm websphere Application Server
Weaknesses CWE-117
CPEs cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm websphere Application Server
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Subscriptions

Ibm Websphere Application Server
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-09-15T18:05:16.871Z

Reserved: 2026-07-18T01:52:06.754Z

Link: CVE-2026-16189

cve-icon Vulnrichment

Updated: 2026-09-15T17:38:48.192Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T20:16:40.020

Modified: 2026-09-16T19:24:58.293

Link: CVE-2026-16189

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T23:45:06Z

Weaknesses
  • CWE-117

    Improper Output Neutralization for Logs