CVE-2026-11547: IBM WebSphere Application Server – Liberty · Server-Side Request Forgery
Affects IBM WebSphere Application Server – LibertySource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium.
Data as of 8 Nov 2026, 17:20 UTC
Thin evidence
One scorer or none| CNA (ibm) | CVSS 3.1 | 4.3 |
|---|
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBMWebSphere Application Server - Liberty | Affected
| Fixed in– |
CPE configurations (2)
cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.10:*:*:*:*:*:*:*
AI-suggested
Until an official fix is available, restrict access to the Admin Center deploy validation endpoint to trusted users only and monitor for suspicious activity related to SSRF attempts.
Description
IBM WebSphere Application Server Liberty versions 17.0.0.3 through 26.0.0.10 contain a server-side request forgery (SSRF) vulnerability in the Admin Center deploy validation endpoint. This flaw allows an attacker with limited privileges to induce the server to make unintended requests. The vulnerability has a medium severity rating with a CVSS score of 4.3. No public exploits or known active exploitation have been reported. No patch or remediation details are provided in the available data.