{"api_version":"1","generated_at":"2026-11-13T23:52:52+00:00","cve":"CVE-2026-94407","urls":{"html":"https://cve.report/CVE-2026-94407","api":"https://cve.report/api/cve/CVE-2026-94407.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-94407","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-94407"},"summary":{"title":"IBM ContextForge MCP Gateway is affected by a regular expression denial of service","description":"IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 is potentially vulnerable to denial of service due to uncontrolled regular expression complexity (CWE-400 / ReDoS). 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See [ v1.1.0 release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.0 ]","time":"","lang":"en"}],"workarounds":[{"source":"CNA","title":"","value":"None. IBM strongly recommends upgrading to the fixed version.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"cpes":["cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.11:*:*:*:*:*:*:*"],"product":"ContextForge MCP Gateway","vendor":"IBM","versions":[{"lessThanOrEqual":"1.0.11","status":"affected","version":"1.0.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 is potentially vulnerable to denial of service due to uncontrolled regular expression complexity (CWE-400 / ReDoS). An authenticated user with tool-registration privileges can embed catastrophically backtracking regex patterns in a tool's JSON Schema `pattern` field; when ContextForge validates arguments against that schema, the validation call may consume unbounded CPU, potentially degrading gateway availability.</p>"}],"value":"IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 is potentially vulnerable to denial of service due to uncontrolled regular expression complexity (CWE-400 / ReDoS). An authenticated user with tool-registration privileges can embed catastrophically backtracking regex patterns in a tool's JSON Schema `pattern` field; when ContextForge validates arguments against that schema, the validation call may consume unbounded CPU, potentially degrading gateway availability."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","description":"CWE-1333 Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-13T21:43:35.363Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7296667"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p><strong>IBM strongly recommends addressing the vulnerability now.</strong></p><div><table><tbody><tr><td><strong>Product(s)</strong></td><td><strong>Version(s) number and/or range </strong></td><td><strong>Remediation/Fix/Instructions</strong></td></tr><tr><td><div><div>IBM ContextForge MCP Gateway</div></div></td><td>v1.0.0 - v1.0.11</td><td><div><div>Upgrade to v1.1.0. See [<a href=\"https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.0\" rel=\"nofollow\">v1.1.0 release notes</a>]</div></div></td></tr></tbody></table></div><p></p><p></p>"}],"value":"IBM strongly recommends addressing the vulnerability now.\n\nProduct(s)Version(s) number and/or range Remediation/Fix/InstructionsIBM ContextForge MCP Gateway\n\n\n\nv1.0.0 - v1.0.11Upgrade to v1.1.0. See [ v1.1.0 release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.0 ]"}],"title":"IBM ContextForge MCP Gateway is affected by a regular expression denial of service","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<div><div>None. IBM strongly recommends upgrading to the fixed version.</div></div>"}],"value":"None. IBM strongly recommends upgrading to the fixed version."}]}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-94407","datePublished":"2026-11-13T21:43:35.363Z","dateReserved":"2026-09-21T14:03:52.354Z","dateUpdated":"2026-11-13T21:43:35.363Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-13 22:17:27","lastModifiedDate":"2026-11-13 22:17:27","problem_types":["CWE-1333","CWE-1333 CWE-1333 Inefficient Regular Expression Complexity"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"94407","Ordinal":"1","Title":"IBM ContextForge MCP Gateway is affected by a regular expression","CVE":"CVE-2026-94407","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"94407","Ordinal":"1","NoteData":"IBM ContextForge MCP Gateway 1.0.0 through 1.0.11 is potentially vulnerable to denial of service due to uncontrolled regular expression complexity (CWE-400 / ReDoS). 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