{"schema":"threatline.record/2","record":{"id":"CVE-2026-101100","aliases":[],"summary":"ag-ui-protocol ag-ui Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup","details":"A flaw has been found in ag-ui-protocol ag-ui up to 2026-09-07. This vulnerability affects the function FilterToolCallsMiddleware of the file sdks/typescript/packages/client/src/middleware/filter-tool-calls.ts of the component Middleware. Executing a manipulation can lead to incomplete cleanup. The attack may be launched remotely. Upgrading to version 2026-09-08 is able to resolve this issue. This patch is called c346119fe870b70f5c19738ee5119f3e1456e59d. It is suggested to upgrade the affected component.","categories":["Unclassified"],"product":"ag-ui","vendor":"ag-ui-protocol","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101100","source_modified_at":"2026-09-28T17:47:55.078Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"ag-ui","vendor":"ag-ui-protocol","versions":[{"version":"2026-09-07","status":"affected"},{"version":"2026-09-08","status":"unaffected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00299,"percentile":0.2147,"score_date":"2026-10-23"},"published_at":"2026-09-28T17:30:15.988Z","modified_at":"2026-09-28T17:47:55.078Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-101100","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T17:47:55.078Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-101100","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://vuldb.com/vuln/410975","tags":["vdb-entry","technical-description"]},{"source":"CVE List","url":"https://vuldb.com/vuln/410975/cti","tags":["signature","permissions-required"]},{"source":"CVE List","url":"https://vuldb.com/cve/CVE-2026-101100","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://vuldb.com/submit/934980","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/ag-ui-protocol/ag-ui/issues/2443","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/ag-ui-protocol/ag-ui/pull/2494","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59d","tags":["patch"]},{"source":"CVE List","url":"https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08","tags":["patch"]},{"source":"CVE List","url":"https://github.com/ag-ui-protocol/ag-ui/","tags":["product"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-28T17:47:46.613540Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-28T17:47:55.078Z","content_hash":"4b23ca7cfea28048547c766375fadc16b5c6bf81cfba2e8d12d5c67295ec7169"}}