{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5516", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-04-03T21:59:13.972Z", "datePublished": "2026-05-27T13:00:04.029Z", "dateUpdated": "2026-06-02T16:13:02.756Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-05-27T13:00:04.029Z"}, "title": "IBM WebSphere Application Server Liberty is affected by a security bypass vulnerability", "affected": [{"vendor": "IBM", "product": "WebSphere Application Server - Liberty", "versions": [{"status": "affected", "version": "22.0.0.11", "lessThanOrEqual": "26.0.0.5", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:websphere_application_server___liberty:22.0.0.11:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.5:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7273425", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 4.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/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 PH70798.\u00a0To 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 .\u00a0\n\nFor IBM WebSphere Application Server Liberty 22.0.0.11 - 26.0.0.5 using the appSecurity-3.0, appSecurity-4.0 or appSecurity-5.0 feature(s):\u00a0\n\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH70798 https://www.ibm.com/support/pages/node/7273239 \n--OR--\n\u00b7 Apply Liberty Fix Pack 26.0.0.6 or later (targeted availability 3Q2026).\u00a0\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 PH70798.&nbsp;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>.&nbsp;<br><br><strong>For IBM WebSphere Application Server Liberty 22.0.0.11 - 26.0.0.5 using the appSecurity-3.0, appSecurity-4.0 or appSecurity-5.0 feature(s):&nbsp;</strong><br>\u00b7 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/7273239\" rel=\"nofollow\">PH70798</a><br>--OR--<br>\u00b7 Apply Liberty Fix Pack 26.0.0.6 or later (targeted availability 3Q2026).&nbsp;<br><br>Additional interim fixes may be available and linked off the interim fix download page.</p>"}]}], "x_generator": {"engine": "ibm-cvegen"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-362", "lang": "en", "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-27T14:43:39.839723Z", "id": "CVE-2026-5516", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T16:13:02.756Z"}}]}}

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