CVE-2026-101100
ag-ui-protocol ag-ui Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup
ag-ui-protocol ag-ui
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.30%Chance of exploitation activity in the next 30 days, higher than 21% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 2
- ag-uiaffected: 2026-09-07CVE List
- ag-uiunaffected: 2026-09-08CVE List
References 9
- github.com/ag-ui-protocol/ag-ui/pull/2494Fixvia CVE List
- github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59dFixvia CVE List
- github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08Fixvia CVE List
- vuldb.com/cve/CVE-2026-101100Advisoryvia CVE List
- vuldb.com/submit/934980Advisoryvia CVE List
- vuldb.com/vuln/410975Referencevia CVE List
- vuldb.com/vuln/410975/ctiReferencevia CVE List
- github.com/ag-ui-protocol/ag-ui/issues/2443Referencevia CVE List
- github.com/ag-ui-protocol/ag-ui/Referencevia CVE List