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CVE-2026-92360— ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation

Quick assessment

Affected

ag-ui-protocol ag-ui

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CVSS 6.3 · Medium Updated Sep 16, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation

Source: CVE Program / CVE List V5

Vulnerability Description

A weakness has been identified in ag-ui-protocol ag-ui 1.0. The impacted element is the function prepareRunAgentInput of the file agent/agent.ts of the component Event Application Layer. This manipulation of the argument TEXT_MESSAGE_START causes origin validation error. Remote exploitation of the attack is possible. The pull request to fix this issue awaits acceptance.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

源验证错误

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
ag-ui-protocol	ag-ui	1.0	`cpe:2.3:a:ag-ui-protocol:ag-ui::::::::`

II. Public POCs for CVE-2026-92360

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-92360

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Patches & Fixes for CVE-2026-92360 (1)

🔗 fix(client): retire only the interrupts a run was started to answer by NathanTarbert · Pull Request #2701 · ag-ui-protocol/ag-ui Read full article issue-tracking patch

Security Blog Posts for CVE-2026-92360 (1)

🔗 [BUG]: Client accepts server-asserted message roles; a server-side event chain clears pending interrupts · Issue #2437 · ag-ui-protocol/ag-ui Read full article issue-tracking

https://www.cve.org/CVERecord?id=CVE-2026-92360

Same Patch Batch · ag-ui-protocol · 2026-09-16 · 5 CVEs total

CVE-2026-92362	7.3 HIGH	ag-ui-protocol ag-ui SSE Frame sse.rs resource consumption
CVE-2026-92361	4.3 MEDIUM	ag-ui-protocol ag-ui SSE Client client.go resource consumption
CVE-2026-92363	4.3 MEDIUM	ag-ui-protocol ag-ui JSON sse_parser.cpp resource consumption
CVE-2026-92359	3.1 LOW	ag-ui-protocol ag-ui CORSMiddleware utils.py create_strands_app cross-domain policy

IV. Related Vulnerabilities

Same product: ag-ui

Same vendor: ag-ui-protocol

Same weakness: CWE-346

V. Comments for CVE-2026-92360

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-92360— ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2026-92360

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-92360

III. Intelligence Information for CVE-2026-92360

Patches & Fixes for CVE-2026-92360 (1)

Security Blog Posts for CVE-2026-92360 (1)

Same Patch Batch · ag-ui-protocol · 2026-09-16 · 5 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-92360

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