CVE-2026-9330

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.

CVSS v3 8.5 HIGH

8.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7274733	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:ibm:websphere_application_server:::::traditional:::*
	cpe:2.3:a:ibm:websphere_application_server:::::traditional:::*

History

No history.

Information

Published : 2026-06-01 19:16

Updated : 2026-07-22 08:10

NVD link : CVE-2026-9330

Mitre link : CVE-2026-9330

CVE.ORG link : CVE-2026-9330

JSON object : View

Products Affected

ibm

websphere_application_server

CWE

CWE-502

Deserialization of Untrusted Data

{"id": "CVE-2026-9330", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9330", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-01T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@us.ibm.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.8}]}, "affected": [{"source": "psirt@us.ibm.com", "affectedData": [{"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", "versions": [{"status": "affected", "version": "9.0", "versionType": "semver", "lessThanOrEqual": "1.1.9.12"}, {"status": "affected", "version": "8.5"}]}]}], "published": "2026-06-01T19:16:55.813", "references": [{"url": "https://www.ibm.com/support/pages/node/7274733", "tags": ["Vendor Advisory"], "source": "psirt@us.ibm.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@us.ibm.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain."}, {"lang": "es", "value": "IBM WebSphere Application Server 9.0 y 8.5 se ve afectado por una validaci\u00f3n incorrecta de datos proporcionados por el usuario durante la deserializaci\u00f3n al usar el componente SAML Web Single Sign-On. Esto podr\u00eda resultar en ejecuci\u00f3n remota de c\u00f3digo a trav\u00e9s de una solicitud HTTP manipulada cuando se combina con una cadena de gadgets adecuada."}], "lastModified": "2026-07-22T08:10:00.117", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:*", "vulnerable": true, "matchCriteriaId": "08320FB1-F021-49EE-BD1F-E2A0D3A7B02B", "versionEndExcluding": "8.5.5.30", "versionStartIncluding": "8.5.0.0"}, {"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:traditional:*:*:*", "vulnerable": true, "matchCriteriaId": "2A4B3C11-FDA8-48D6-997F-48EEA8C3CB2C", "versionEndExcluding": "9.0.5.29", "versionStartIncluding": "9.0.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@us.ibm.com"}