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vuln-cve/data/2026/11xxx/CVE-2026-11549.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-11549",
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"state": "PUBLISHED",
"assignerShortName": "ibm",
"dateReserved": "2026-06-08T03:27:16.708Z",
"datePublished": "2026-09-18T19:06:17.198Z",
"dateUpdated": "2026-10-22T18:53:28.715Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm",
"dateUpdated": "2026-10-22T18:53:28.715Z"
},
"title": "IBM WebSphere Application Server and 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",
"versions": [
{
"status": "affected",
"version": "9.0"
},
{
"status": "affected",
"version": "8.5"
}
],
"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:*:*:*:*:*:*:*"
]
},
{
"vendor": "IBM",
"product": "WebSphere Application Server - Liberty",
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"status": "affected",
"version": "17.0.0.3",
"lessThanOrEqual": "26.0.0.5",
"versionType": "semver"
}
],
"cpes": [
"cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:*:*:*:*:*:*:*"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 are affected by a virtual host bypass vulnerability.",
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"value": "<p>IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3&nbsp;through 26.0.0.8&nbsp;are affected by a virtual host bypass vulnerability.</p>"
}
]
}
],
"references": [
{
"url": "https://www.ibm.com/support/pages/node/7286610",
"tags": [
"vendor-advisory",
"patch"
]
},
{
"url": "https://www.ibm.com/support/pages/node/7286611",
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"cvssV3_1": {
"version": "3.1",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseSeverity": "MEDIUM",
"baseScore": 6.5,
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
}
}
],
"solutions": [
{
"lang": "en",
"value": "IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below.\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.28:\n· Apply Fix Pack 9.0.5.29 https://www.ibm.com/support/pages/node/7285876 (availability September 2026) or later fix pack. \n\n\n\nFor V8.5.0.0 through 8.5.5.30:\n· Apply Fix Pack 8.5.5.31 https://www.ibm.com/support/pages/node/7285869 (availability September 2026) or later fix pack. \n\n\n\n\n\n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.8:\n· Apply Liberty Fix Pack 26.0.0.9 https://www.ibm.com/support/pages/node/7285875 (availability September 2026) or later fix pack.",
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"value": "<p>IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below.</p><p><strong>For IBM WebSphere Application Server traditional:</strong></p><p><strong>For V9.0.0.0 through 9.0.5.28:</strong><br>· Apply Fix Pack <a href=\"https://www.ibm.com/support/pages/node/7285876\" rel=\"nofollow\">9.0.5.29</a> (availability September 2026) or later fix pack.&nbsp;</p><p><strong>For V8.5.0.0 through 8.5.5.30:</strong><br>· Apply Fix Pack <a href=\"https://www.ibm.com/support/pages/node/7285869\" rel=\"nofollow\">8.5.5.31</a> (availability September 2026) or later fix pack.&nbsp;</p><p><br></p><p><strong>For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.8:</strong><br>· Apply Liberty Fix Pack <a href=\"https://www.ibm.com/support/pages/node/7285875\" rel=\"nofollow\">26.0.0.9</a> (availability September 2026) or later fix pack.&nbsp;</p><div></div>"
}
]
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
},
"adp": [
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"metrics": [
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"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-18T19:45:27.591407Z",
"id": "CVE-2026-11549",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2026-09-18T19:45:39.009Z"
}
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]
}
}
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