---
id: CVE-2026-101099
title: A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23
summary: >-
  A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This
  affects an unknown part of the file SseParser.kt of the component Kotlin
  Community SDK. Performing a manipulation results in handling of exceptional
  conditions. …
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-755
vendor: ag-ui-protocol
product: ag-ui
affected:
  - ag-ui 2026-09-23
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T21:03:44.987'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101099'
references:
  - url: 'https://github.com/ag-ui-protocol/ag-ui/'
    label: cna@vuldb.com
  - url: 'https://github.com/ag-ui-protocol/ag-ui/issues/2442'
    label: cna@vuldb.com
  - url: 'https://github.com/ag-ui-protocol/ag-ui/pull/2657'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-101099'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/934974'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/410974'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/410974/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T18:17:54.303Z'
---

## Overview

A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.

## Remediation

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