--- title: "CVE-2026-93909: IBM WebSphere Application Server Liberty - Authentication Bypass" description: "IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10 contains an authentication bypass caused by samlWeb-2.0 feature enabled, letting attackers bypass authentication, exploit requires samlWeb-2.0 feature enabled." url: https://panop.io/threat-heartbeat/CVE-2026-93909/ --- # CVE-2026-93909 IBM WebSphere Application Server Liberty - Authentication Bypass IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10 contains an authentication bypass caused by samlWeb-2.0 feature enabled, letting attackers bypass authentication, exploit requires samlWeb-2.0 feature enabled. CVSS base score 9.1 /10 Critical CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.35% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93909) ## Details Type Authentication Bypass Impact Broken Authentication CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Published 13 October 2026 Updated 15 October 2026 Weakness [CWE-384](https://cwe.mitre.org/data/definitions/384.html) ## Vendor fix Update to the latest version beyond 26.0.0.10 or apply vendor patches. 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 - [https://nvd.nist.gov/vuln/detail/CVE-2026-93909](https://nvd.nist.gov/vuln/detail/CVE-2026-93909) - [https://www.ibm.com/support/pages/node/7292236](https://www.ibm.com/support/pages/node/7292236) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)