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        "cveId": "CVE-2026-12118",
        "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "state": "PUBLISHED",
        "assignerShortName": "ibm",
        "dateReserved": "2026-06-12T14:59:49.826Z",
        "datePublished": "2026-07-30T17:00:50.262Z",
        "dateUpdated": "2026-07-30T17:41:17.032Z"
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            },
            "title": "IBM webMethods Integration could allow an unauthenticated remote attacker to execute arbitrary code on the system due to the deserialization of untrusted data",
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                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-502",
                            "description": "CWE-502 Deserialization of Untrusted Data",
                            "type": "CWE"
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            "affected": [
                {
                    "vendor": "IBM",
                    "product": "webMethods Integration (on prem)",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "10.15, 10.11"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:ibm:webmethods_integration_on_prem:10.15:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:webmethods_integration_on_prem:10.15.0:*:*:*:*:*:*:*"
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            "references": [
                {
                    "url": "https://www.ibm.com/support/pages/node/7278857",
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                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.8,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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            "solutions": [
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                    "lang": "en",
                    "value": "No product patch or software update is required.\n\n\n\nBackground:\nThe WmServiceMock package relies on Integration Server authentication and does not implement a separate authentication mechanism. This package is a development-time testing utility designed exclusively for development and testing environments.\n\n\n\nRequired Action:\nRemove the WmServiceMock package from any production Integration Server node. The package should not be deployed on internet-facing or production systems.\n\n\n\nSteps to Remove the WmServiceMock Package:\n\n\n\n1. Log in to Integration Server \n2. Navigate to Packages > Management\n3. Locate the WmServiceMock package in the package list\n4. Click the \"Delete\" icon next to WmServiceMock\n5. Confirm the deletion when prompted\n6. Restart the Integration Server to complete the removal\n\n\n\nFor Development/Testing Environments Only:\n\n\n\nIf you must retain WmServiceMock for development or testing purposes:\n\n\n\n1. Ensure the package is deployed only in isolated, non-production environments\n2. Verify Integration Server authentication is enabled:\n   - Navigate to Server > Ports in Integration Server\n   - Review port security settings and client certificate handling\n   - Confirm authentication is enforced for all ports\n3. For detailed security configuration, refer to:\n   - Integration Server Security:  Integration Server Security - IBM Documentation https://www.ibm.com/docs/en/webmethods-integration/wm-integration-server/11.1.0 \n   - Configuring Port Security:  Configuring How Ports Handle Client Certificates - IBM Documentation https://www.ibm.com/docs/en/webmethods-integration/wm-integration-server/11.1.0 \n\n\n\nImportant: The WmServiceMock package should not be exposed to internet-facing networks or deployed in production systems.",
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                            "value": "<p>No product patch or software update is required.</p><p><strong>Background:</strong><br/>The WmServiceMock package relies on Integration Server authentication and does not implement a separate authentication mechanism. This package is a development-time testing utility designed exclusively for development and testing environments.</p><p><strong>Required Action:</strong><br/>Remove the WmServiceMock package from any production Integration Server node. The package should not be deployed on internet-facing or production systems.</p><p><strong>Steps to Remove the WmServiceMock Package:</strong></p><p>1. Log in to Integration Server <br/>2. Navigate to Packages &gt; Management<br/>3. Locate the WmServiceMock package in the package list<br/>4. Click the \"Delete\" icon next to WmServiceMock<br/>5. Confirm the deletion when prompted<br/>6. Restart the Integration Server to complete the removal</p><p><strong>For Development/Testing Environments Only:</strong></p><p>If you must retain WmServiceMock for development or testing purposes:</p><p>1. Ensure the package is deployed only in isolated, non-production environments<br/>2. Verify Integration Server authentication is enabled:<br/>   - Navigate to Server &gt; Ports in Integration Server<br/>   - Review port security settings and client certificate handling<br/>   - Confirm authentication is enforced for all ports<br/>3. For detailed security configuration, refer to:<br/>   - Integration Server Security: <a href=\"https://www.ibm.com/docs/en/webmethods-integration/wm-integration-server/11.1.0?topic=server-integration-security\" rel=\"nofollow\">Integration Server Security - IBM Documentation</a><br/>   - Configuring Port Security: <a href=\"https://www.ibm.com/docs/en/webmethods-integration/wm-integration-server/11.1.0?topic=ports-configuring-how-handle-client-certificates\" rel=\"nofollow\">Configuring How Ports Handle Client Certificates - IBM Documentation</a></p><p><strong>Important</strong>: The WmServiceMock package should not be exposed to internet-facing networks or deployed in production systems.</p>"
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                    "lang": "en",
                    "value": "This vulnerability was reported to IBM by Black Lantern Security (https://www.blacklanternsecurity.com).",
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                                "timestamp": "2026-07-30T17:40:56.010338Z",
                                "id": "CVE-2026-12118",
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                                        "Exploitation": "none"
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