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CVE-2026-92361— ag-ui-protocol ag-ui SSE Client client.go resource consumption

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.

在 ag-ui-protocol 的 ag-ui 1.0 版本中发现了一个安全漏洞。该漏洞位于组件“SSE 客户端”中，影响文件中的一个未知功能。攻击者可通过该缺陷进行资源消耗型攻击（如导致内存或 CPU 资源被大量占用）。此攻击可以远程执行。用于修复该问题的 Pull Request 正等待被接受合并。

CVSS 4.3 · Medium EPSS 0.53% · P45 Updated Sep 17, 2026

Possible ATT&CK Techniques 3 AI

T1408 T1499 · Endpoint Denial of Service T1204 · User Execution

Affected Version Matrix 1

Vendor	Product	Version Range	Status
ag-ui-protocol	ag-ui	`1.0`	affected

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Vulnerability Information

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Vulnerability Title

ag-ui-protocol ag-ui SSE Client client.go resource consumption

Source: CVE Program / CVE List V5

Vulnerability Description

A security vulnerability has been detected in ag-ui-protocol ag-ui 1.0. This affects an unknown function of the file sdks/community/go/pkg/client/sse/client.go of the component SSE Client. Such manipulation leads to resource consumption. The attack can be executed remotely. 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:N/I:N/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

未加控制的资源消耗(资源穷尽)

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-2026-92361

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-92361

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Patches & Fixes for CVE-2026-92361 (1)

🔗 fix(go): bound the SSE frame and line the reader will hold by NathanTarbert · Pull Request #2700 · ag-ui-protocol/ag-ui Read full article issue-tracking patch

Other References for CVE-2026-92361 (1)

🔗 [BUG]: Go community SDK accumulates SSE events without bounds · Issue #2438 · ag-ui-protocol/ag-ui issue-tracking

https://www.cve.org/CVERecord?id=CVE-2026-92361

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-2026-92360	6.3 MEDIUM	ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validati
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-400