CVE-2026-105443 IBM WebSphere Application Server Liberty - Broken Access Control

IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10 contains insufficient isolation between servers sharing an install, letting attackers potentially interfere with other servers, exploit requires shared install environment.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.23% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to the latest version beyond 26.0.0.10.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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