---
id: CVE-2026-92363
title: A flaw has been found in ag-ui-protocol ag-ui 1.0
summary: >-
  A flaw has been found in ag-ui-protocol ag-ui 1.0. Affected is an unknown
  function of the file src/stream/sse_parser.cpp of the component JSON Parser.
  Executing a manipulation can lead to resource consumption. The attack may be
  performed…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-400
  - CWE-404
vendor: ag-ui-protocol
product: ag-ui
affected:
  - ag-ui 1.0
published: '2026-09-16'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:18:07.347'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92363'
references:
  - url: 'https://github.com/ag-ui-protocol/ag-ui/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/ag-ui-protocol/ag-ui/commit/ab6e0bc298996caac2b4b0b3ec0bd8d32a15a186
    label: cna@vuldb.com
  - url: 'https://github.com/ag-ui-protocol/ag-ui/issues/2440'
    label: cna@vuldb.com
  - url: 'https://github.com/ag-ui-protocol/ag-ui/pull/2501'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-92363'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/934957'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/405449'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/405449/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T17:49:29.298534Z'
epss: 0.00522
epssPercentile: 0.43311
ingestedAt: '2026-09-16T13:56:12.616Z'
---

## Overview

A flaw has been found in ag-ui-protocol ag-ui 1.0. Affected is an unknown function of the file src/stream/sse_parser.cpp of the component JSON Parser. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. This patch is called ab6e0bc298996caac2b4b0b3ec0bd8d32a15a186. Applying a patch is advised to resolve this issue.

## Remediation

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