{"id":"CVE-2026-93895","state":"PUBLISHED","title":"IBM WebSphere Application Server Liberty Improper Access Control","description":"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.","publishedAt":"2026-10-13T20:18:07.987Z","updatedAt":"2026-10-17T00:49:16.812Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"ibm"},"assigner":"ibm","products":["IBM WebSphere Application Server - Liberty"],"affected":[{"vendor":"IBM","product":"WebSphere Application Server - Liberty","versions":[{"version":"20.0.0.12","status":"affected","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:*:*:*:*:*:*:*"]}],"references":["https://www.ibm.com/support/pages/node/7292228"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93895.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93895","state":"PUBLISHED","datePublished":"2026-10-13T20:18:07.987Z","dateUpdated":"2026-10-17T00:49:16.812Z","assignerShortName":"ibm","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateReserved":"2026-09-18T20:30:18.225Z"},"containers":{"cna":{"title":"IBM WebSphere Application Server Liberty Improper Access Control","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."}],"affected":[{"vendor":"IBM","product":"WebSphere Application Server - Liberty","versions":[{"version":"20.0.0.12","status":"affected","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:*:*:*:*:*:*:*"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284 Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"ibm","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateUpdated":"2026-10-13T20:18:07.987Z"},"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":"<p>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 <a href=\"https://www.ibm.com/support/pages/node/6553910\" rel=\"nofollow\">How to determine if Liberty is using a specific feature</a>. <br/><br/><strong>For IBM WebSphere Application Server Liberty 20.0.0.12 - 26.0.0.10 using the grpc-1.0 feature: </strong><br/>· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7277460\" rel=\"nofollow\">DT502929</a><br/>--OR--<br/>· Apply Liberty Fix Pack 26.0.0.11 or later (targeted availability 4Q2026). <br/><br/>Additional interim fixes may be available and linked off the interim fix download page.</p>"}]}]},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-17T00:49:16.812Z"}}]}}}