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CVE-2026-84857— sigoden aichat API Endpoint serve.rs memory allocation

Quick assessment

Affected
sigoden aichat
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 sigoden aichat（版本 0.30.4 及更早）中发现了一个缺陷。该缺陷影响 文件中 API Endpoint 组件的某个未知函数。对该函数的操作会导致不可控的内存分配。攻击者可以从远程发起攻击。该漏洞的利用方式（exploit）已经公开，可能会被用于攻击。厂商在披露此漏洞早期即被联系，但始终未作任何回应。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-84857

Vulnerability Information
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Vulnerability Title
sigoden aichat API Endpoint serve.rs memory allocation
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in sigoden aichat up to 0.30.4. This affects an unknown function of the file src/serve.rs of the component API Endpoint. This manipulation causes uncontrolled memory allocation. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sigoden aichat 0.30.0 cpe:2.3:a:sigoden:aichat:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-84857

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III. Intelligence Information for CVE-2026-84857

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Vendor Advisories for CVE-2026-84857 (2)

Proof of Concept for CVE-2026-84857 (1)

Other References for CVE-2026-84857 (1)

IV. Related Vulnerabilities

Same weakness: CWE-789

V. Comments for CVE-2026-84857

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