{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110278","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","state":"PUBLISHED","assignerShortName":"ibm","dateReserved":"2026-10-13T19:05:09.052Z","datePublished":"2026-11-13T21:43:09.800Z","dateUpdated":"2026-11-13T21:43:09.800Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm","dateUpdated":"2026-11-13T21:43:09.800Z"},"title":"IBM ContextForge MCP Gateway is affected by an information exposure vulnerability","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-294","description":"CWE-294 Authentication Bypass by Capture-replay","type":"CWE"}]}],"affected":[{"vendor":"IBM","product":"ContextForge MCP Gateway","versions":[{"status":"affected","version":"1.0.0","lessThanOrEqual":"1.1.0","versionType":"semver"}],"cpes":["cpe:2.3:a:ibm:contextforge_mcp_gateway:1.0.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:contextforge_mcp_gateway:1.1.0:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"IBM ContextForge MCP Gateway 1.0.0 through 1.1.0 could allow an attacker to replay identity propagation claims signatures or expose sensitive user identity information to third-party MCP servers due to static signature payloads and missing per-gateway configuration checks during tool invocation.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>IBM ContextForge MCP Gateway 1.0.0 through 1.1.0 could allow an attacker to replay identity propagation claims signatures or expose sensitive user identity information to third-party MCP servers due to static signature payloads and missing per-gateway configuration checks during tool invocation.</p>"}]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7296489","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"HIGH","baseScore":7.4,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}}],"workarounds":[{"lang":"en","value":"IBM strongly recommends upgrading to the fixed version.\nIf you cannot update disable identity propagation globally (set `IDENTITY_PROPAGATION_ENABLED=false`) so that no upstream MCP server receives user identity information, and restrict access to the gateway to trusted users.","supportingMedia":[{"type":"text/html","base64":false,"value":"<div><div>IBM strongly recommends upgrading to the fixed version.<br/>If you cannot update disable identity propagation globally (set `IDENTITY_PROPAGATION_ENABLED=false`) so that no upstream MCP server receives user identity information, and restrict access to the gateway to trusted users.</div></div>"}]}],"solutions":[{"lang":"en","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-v1.1.0Upgrade to v1.1.1 immediately [ Release notes https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.1 ]","supportingMedia":[{"type":"text/html","base64":false,"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-v1.1.0</td><td>Upgrade to v1.1.1 immediately [<a href=\"https://github.com/IBM/mcp-context-forge/releases/tag/v1.1.1\" rel=\"nofollow\">Release notes</a>]</td></tr></tbody></table></div><p></p><p></p>"}]}],"credits":[{"lang":"en","value":"This vulnerability was reported to IBM by Wolfgang Kriesel.","type":"finder"}]}}}