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CVE-2026-120233— ag-ui-protocol ag-ui HttpAgent http.ts information disclosure

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 组件（版本 0.0.58 及以下）中发现了一个安全漏洞。该漏洞影响组件 HttpAgent 中文件 的某个未知函数。攻击者可通过构造恶意输入触发该漏洞，导致信息泄露。此攻击可远程发起。利用代码已公开，可能被用于实际攻击。目前，修复该问题的拉取请求（Pull Request）正在等待合并。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-120233

Vulnerability Information
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Vulnerability Title
ag-ui-protocol ag-ui HttpAgent http.ts information disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in ag-ui-protocol ag-ui up to 0.0.58. This affects an unknown function of the file sdks/typescript/packages/client/src/agent/http.ts of the component HttpAgent. Performing a manipulation results in information disclosure. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. 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:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ag-ui-protocol ag-ui 0.0.1 cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-120233

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-120233

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Other References for CVE-2026-120233 (1)

Other References for CVE-2026-120233 (5)

Same Patch Batch · ag-ui-protocol · 2026-11-01 · 5 CVEs total

CVE-2026-120236 6.3 MEDIUM ag-ui-protocol ag-ui Transport Decoder input validation
CVE-2026-120234 4.3 MEDIUM ag-ui-protocol ag-ui HTTP Transport e.text resource consumption
CVE-2026-120235 4.3 MEDIUM ag-ui-protocol ag-ui SSE Parser sse.ts parseSSEStream resource consumption
CVE-2026-120237 4.3 MEDIUM ag-ui-protocol ag-ui Interrupt expiry index.ts isInterruptExpired resource consumption

IV. Related Vulnerabilities

Same product: ag-ui
Same vendor: ag-ui-protocol
Same weakness: CWE-200