{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-11918 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-11918 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11918 is a medium-severity vulnerability in IBM ContextForge MCP Gateway, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-11918 and fix it if it is affected.\n\nWhat it is: CVE-2026-11918 is a medium-severity vulnerability in IBM ContextForge MCP Gateway, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-11918 in the wild and no public exploit code.\n\nAffected product: IBM ContextForge MCP Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-11918/ (Markdown: https://insights.sbomify.com/CVE-2026-11918/index.md)","id":"CVE-2026-11918","markdown":"https://insights.sbomify.com/CVE-2026-11918/index.md","name":"CVE-2026-11918","record":{"aliases":["GHSA-x4xw-xv9j-3c3q"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP Gateway","requires_auth":"low_privilege","summary":"Authenticated users can bypass security filters in IBM ContextForge MCP Gateway by exploiting incomplete inspection of nested payloads.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-184","name":"Incomplete List of Disallowed Inputs"}],"description":"IBM ContextForge MCP Gateway \u003c= v1.0.4 IBM mcp-context-forge could allow an authenticated user to bypass protection mechanisms due to incomplete recursive inspection of nested payload content.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"IBM ContextForge MCP Gateway is affected by security filter bypass via nested payload structures","id":"CVE-2026-11918","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"JoomSport \u003c= 5.7.9 - Authenticated (Administrator+) SQL Injection via 'order' Parameter","id":"CVE-2026-11920"},"packages":[],"prev":{"headline":"ThinManager® - Path Traversal via API","id":"CVE-2026-11917"},"products":["ContextForge MCP Gateway"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-20","vendors":["IBM"]},"summary":"Authenticated users can bypass security filters in IBM ContextForge MCP Gateway by exploiting incomplete inspection of nested payloads.","url":"https://insights.sbomify.com/CVE-2026-11918/"}