CVE-2026-101100mediumCWE-459

CVE-2026-101100: medium-severity vulnerability in ag-ui-protocol ag-ui

ag-ui-protocol ag-ui Middleware filter-tool-calls.ts FilterToolCallsMiddleware cleanup

Published

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
ag-ui-protocol · ag-ui
Related CVEs — ag-ui-protocol ag-ui

In the same product, most dangerous first.

CVE-2026-92363MEDIUMag-ui-protocol ag-ui JSON sse_parser.cpp resource consumptionEPSS 0.5%CVE-2026-92361MEDIUMag-ui-protocol ag-ui SSE Client client.go resource consumptionEPSS 0.5%CVE-2026-92362MEDIUMag-ui-protocol ag-ui SSE Frame sse.rs resource consumptionEPSS 0.5%CVE-2026-101099MEDIUMag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional conditionEPSS 0.5%CVE-2026-101098MEDIUMag-ui-protocol ag-ui HTTP JdkAgentHttpHandler.java readAllBytes resource consumptionEPSS 0.5%CVE-2026-92184MEDIUMag-ui-protocol ag-ui Multimodal Content utils.py urllib.request.urlopen server-side request forgeryEPSS 0.4%
References
https://github.com/ag-ui-protocol/ag-ui/https://github.com/ag-ui-protocol/ag-ui/commit/c346119fe870b70f5c19738ee5119f3e1456e59dhttps://github.com/ag-ui-protocol/ag-ui/issues/2443https://github.com/ag-ui-protocol/ag-ui/pull/2494https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08https://vuldb.com/cve/CVE-2026-101100https://vuldb.com/submit/934980https://vuldb.com/vuln/410975https://vuldb.com/vuln/410975/cti