CVE-2026-101100

medium

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.

References

https://vuldb.com/vuln/410975/cti

https://vuldb.com/vuln/410975

https://vuldb.com/submit/934980

https://vuldb.com/cve/CVE-2026-101100

https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08

https://github.com/ag-ui-protocol/ag-ui/pull/2494

https://github.com/ag-ui-protocol/ag-ui/issues/2443

https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59d

https://github.com/ag-ui-protocol/ag-ui/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88381

Details

Source: Mitre, NVD

Published: 2026-09-28

Updated: 2026-09-28

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00299