---
id: CVE-2026-84857
title: A flaw has been found in sigoden aichat up to 0.30.4
summary: >-
  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.…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-400
  - CWE-789
published: '2026-09-02'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T23:10:00.143'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84857'
references:
  - url: >-
      https://github.com/outlookgp/CVE/tree/main/AIChat_Serve_Request_Body_DoS_Report
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-84857'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/886265'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/398132'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/398132/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-09-28T23:23:00.556Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.