{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101100","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-28T02:53:37.761Z","datePublished":"2026-09-28T17:30:15.988Z","dateUpdated":"2026-09-28T17:47:55.078Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-28T17:30:15.988Z"},"title":"ag-ui-protocol ag-ui Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-459","lang":"en","description":"Incomplete Cleanup"}]}],"affected":[{"vendor":"ag-ui-protocol","product":"ag-ui","versions":[{"version":"2026-09-07","status":"affected"},{"version":"2026-09-08","status":"unaffected"}],"cpes":["cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*"],"modules":["Middleware"]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.4,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5.5,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:OF/RC:C"}}],"timeline":[{"time":"2026-09-08T00:00:00.000Z","lang":"en","value":"Countermeasure disclosed"},{"time":"2026-09-28T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-28T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-28T04:58:57.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"meraklbz (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/410975","name":"VDB-410975 | ag-ui-protocol ag-ui Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/410975/cti","name":"VDB-410975 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-101100","name":"CVE-2026-101100 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/934980","name":"Submit #934980 | ag-ui-protocol ag-ui v1.0 CWE-459","tags":["third-party-advisory"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/issues/2443","tags":["issue-tracking"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/pull/2494","tags":["issue-tracking","patch"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59d","tags":["patch"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08","tags":["patch"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/","tags":["product"]}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202609"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-28T17:47:46.613540Z","id":"CVE-2026-101100","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T17:47:55.078Z"}}]}}