{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93895","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","state":"PUBLISHED","assignerShortName":"ibm","dateReserved":"2026-09-18T20:30:18.225Z","datePublished":"2026-10-13T20:18:07.987Z","dateUpdated":"2026-10-17T00:49:16.812Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm","dateUpdated":"2026-10-13T20:18:07.987Z"},"title":"IBM WebSphere Application Server Liberty Improper Access Control","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-284","description":"CWE-284 Improper Access Control","type":"CWE"}]}],"affected":[{"vendor":"IBM","product":"WebSphere Application Server - Liberty","versions":[{"status":"affected","version":"20.0.0.12","lessThanOrEqual":"26.0.0.10","versionType":"semver"}],"cpes":["cpe:2.3:a:ibm:websphere_application_server_liberty:20.0.0.12:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.10:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10 could allow an unauthenticated remote attacker to bypass access controls configured on gRPC service methods.","supportingMedia":[{"type":"text/html","base64":false,"value":"

IBM WebSphere Application Server - Liberty 20.0.0.12 through 26.0.0.10 could allow an unauthenticated remote attacker to bypass access controls configured on gRPC service methods.

"}]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292228","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"CRITICAL","baseScore":9.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}}],"solutions":[{"lang":"en","value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502929. To determine if a feature is enabled for IBM WebSphere Application Server Liberty, refer to  How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 . \n\nFor IBM WebSphere Application Server Liberty 20.0.0.12 - 26.0.0.10 using the grpc-1.0 feature: \n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502929 https://www.ibm.com/support/pages/node/7277460 \n--OR--\n· Apply Liberty Fix Pack 26.0.0.11 or later (targeted availability 4Q2026). \n\nAdditional interim fixes may be available and linked off the interim fix download page.","supportingMedia":[{"type":"text/html","base64":false,"value":"

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502929. To determine if a feature is enabled for IBM WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature. 

For IBM WebSphere Application Server Liberty 20.0.0.12 - 26.0.0.10 using the grpc-1.0 feature: 
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502929
--OR--
· Apply Liberty Fix Pack 26.0.0.11 or later (targeted availability 4Q2026). 

Additional interim fixes may be available and linked off the interim fix download page.

"}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-17T00:49:08.152694Z","id":"CVE-2026-93895","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-17T00:49:16.812Z"}}]}}