{"api_version":"1","generated_at":"2026-10-21T05:11:09+00:00","cve":"CVE-2026-103499","urls":{"html":"https://cve.report/CVE-2026-103499","api":"https://cve.report/api/cve/CVE-2026-103499.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-103499","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103499"},"summary":{"title":"IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service","description":"IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 Liberty could allow a remote unauthenticated attacker to cause a denial of service due to uncontrolled resource consumption.","state":"PUBLISHED","assigner":"ibm","published_at":"2026-10-13 14:17:18","updated_at":"2026-10-13 16:17:14"},"problem_types":["CWE-400","CWE-400 CWE-400 Uncontrolled Resource Consumption"],"metrics":[{"version":"3.1","source":"psirt@us.ibm.com","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292214","name":"https://www.ibm.com/support/pages/node/7292214","refsource":"psirt@us.ibm.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103499","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103499","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server - Liberty","version":"affected 17.0.0.3 26.0.0.10 semver","platforms":[]},{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server","version":"affected 8.5","platforms":[]},{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server","version":"affected 9.0","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502944 and DT502943. To determine if a feature is enabled for 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\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10 using the servlet-3.0, servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, servlet-6.1 feature(s):\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502944 https://www.ibm.com/support/pages/node/7292209 https://www.ibm.com/support/pages/node/7292209 \n--OR--\n· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.29:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502943 https://www.ibm.com/support/pages/node/7292210 \n--OR--\n· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT502943 https://www.ibm.com/support/pages/node/7292210 https://www.ibm.com/support/pages/node/7292210 \n--OR--\n· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).\n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-103499","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-10-13T14:05:03.265177Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-13T14:28:58.466Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"cpes":["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:*:*:*:*:*:*:*"],"product":"WebSphere Application Server - Liberty","vendor":"IBM","versions":[{"lessThanOrEqual":"26.0.0.10","status":"affected","version":"17.0.0.3","versionType":"semver"}]},{"cpes":["cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*"],"product":"WebSphere Application Server","vendor":"IBM","versions":[{"status":"affected","version":"8.5"},{"status":"affected","version":"9.0"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 Liberty could allow a remote unauthenticated attacker to cause a denial of service due to uncontrolled resource consumption.

"}],"value":"IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 Liberty could allow a remote unauthenticated attacker to cause a denial of service due to uncontrolled resource consumption."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-13T13:46:44.701Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7292214"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502944 and DT502943. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature. 

For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10 using the servlet-3.0, servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, servlet-6.1 feature(s):

· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502944
--OR--
· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.29:
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502943
--OR--
· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  

For V8.5.0.0 through 8.5.5.31:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT502943
--OR--
· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).

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

"}],"value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT502944 and DT502943. To determine if a feature is enabled for 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\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10 using the servlet-3.0, servlet-3.1, servlet-4.0, servlet-5.0, servlet-6.0, servlet-6.1 feature(s):\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502944 https://www.ibm.com/support/pages/node/7292209 https://www.ibm.com/support/pages/node/7292209 \n--OR--\n· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.29:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT502943 https://www.ibm.com/support/pages/node/7292210 \n--OR--\n· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT502943 https://www.ibm.com/support/pages/node/7292210 https://www.ibm.com/support/pages/node/7292210 \n--OR--\n· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).\n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page."}],"title":"IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service"}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-103499","datePublished":"2026-10-13T13:46:44.701Z","dateReserved":"2026-09-30T17:11:05.181Z","dateUpdated":"2026-10-13T14:28:58.466Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-13 14:17:18","lastModifiedDate":"2026-10-13 16:17:14","problem_types":["CWE-400","CWE-400 CWE-400 Uncontrolled Resource Consumption"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-13T14:05:03.265177Z","id":"CVE-2026-103499","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"103499","Ordinal":"1","Title":"IBM WebSphere Application Server and WebSphere Application Serve","CVE":"CVE-2026-103499","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"103499","Ordinal":"1","NoteData":"IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 Liberty could allow a remote unauthenticated attacker to cause a denial of service due to uncontrolled resource consumption.","Type":"Description","Title":"IBM WebSphere Application Server and WebSphere Application Serve"}]}}}