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Vulnerability record · CVE-2026-18499 · published 12 August 2026

CVE-2026-18499: Ibm websphere application server improper authorization vulnerability

Ibm · Websphere Application Server

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.

8.1 CVSS 3.1 High EPSS 0.42% · top 66.3% CWE-285 · Improper authorization
8.1CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Aug 2026Last modified by NVD

Description

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ibm.com/support/pages/node/7283489 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-18499), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.