{"api_version":"1","generated_at":"2026-05-30T22:55:27+00:00","cve":"CVE-2026-4410","urls":{"html":"https://cve.report/CVE-2026-4410","api":"https://cve.report/api/cve/CVE-2026-4410.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-4410","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-4410"},"summary":{"title":"IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service","description":"IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. 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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 19.0.0.7 - 26.0.0.5 using the sipServlet-1.1 feature:\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70807 https://www.ibm.com/support/pages/node/7273237 \n--OR--\n· Apply Fix Pack 26.0.0.6 or later (targeted availability 2Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.27:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n· Apply Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n· Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).\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":{"cve_year":"2026","cve_id":"4410","cve":"CVE-2026-4410","epss":"0.000440000","percentile":"0.137880000","score_date":"2026-05-29","updated_at":"2026-05-30 00:13:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-4410","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-27T15:24:44.817386Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-27T15:25:09.833Z","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:19.0.0.7:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.5:*:*:*:*:*:*:*"],"product":"WebSphere Application Server - Liberty","vendor":"IBM","versions":[{"lessThanOrEqual":"26.0.0.5","status":"affected","version":"19.0.0.7","versionType":"semver"}]},{"cpes":["cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"],"product":"WebSphere Application Server","vendor":"IBM","versions":[{"status":"affected","version":"9.0"},{"status":"affected","version":"8.5"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

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IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH70807 and APAR PH70616. 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 19.0.0.7 - 26.0.0.5 using the sipServlet-1.1 feature:

· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70807
--OR--
· Apply Fix Pack 26.0.0.6 or later (targeted availability 2Q2026).

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.27:
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70616
--OR--
· Apply Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).  

For V8.5.0.0 through 8.5.5.29:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves PH70616
--OR--
· Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).

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 PH70807 and APAR PH70616. 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 19.0.0.7 - 26.0.0.5 using the sipServlet-1.1 feature:\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70807 https://www.ibm.com/support/pages/node/7273237 \n--OR--\n· Apply Fix Pack 26.0.0.6 or later (targeted availability 2Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.27:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n· Apply Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n· Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).\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","x_generator":{"engine":"ibm-cvegen"}}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-4410","datePublished":"2026-05-27T12:54:48.488Z","dateReserved":"2026-03-19T02:14:15.887Z","dateUpdated":"2026-05-27T15:25:09.833Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:33","lastModifiedDate":"2026-05-27 17:16:44","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:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.8,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.2,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"4410","Ordinal":"1","Title":"IBM WebSphere Application Server and WebSphere Application Serve","CVE":"CVE-2026-4410","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"4410","Ordinal":"1","NoteData":"IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.","Type":"Description","Title":"IBM WebSphere Application Server and WebSphere Application Serve"}]}}}