---
id: CVE-2026-107226
title: >-
  The AsyncHttpClient (AHC) library allows Java applications to easily execute
  HTTP requests and asynchronously process HTTP responses
summary: >-
  The AsyncHttpClient (AHC) library allows Java applications to easily execute
  HTTP requests and asynchronously process HTTP responses. From 2.1.0 until
  3.0.14, the default ThreadSafeCookieStore does not retain whether a Set-Cookie
  respons…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N'
cwe:
  - CWE-384
  - CWE-693
vendor: asynchttpclient
product: 'org.asynchttpclient:async-http-client'
affected:
  - 'org.asynchttpclient:async-http-client >= 3.0.0, <= 3.0.13'
  - 'org.asynchttpclient:async-http-client >= 2.1.0, <= 2.16.1'
patched:
  - 'org.asynchttpclient:async-http-client 3.0.14'
published: '2026-10-12'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:02:37.630'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107226'
references:
  - url: >-
      https://github.com/AsyncHttpClient/async-http-client/commit/6ec7ee45034d154f502852a962d2891746fb82c1
    label: security-advisories@github.com
  - url: >-
      https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14
    label: security-advisories@github.com
  - url: >-
      https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-p2jm-6hj6-9rjg
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-p2jm-6hj6-9rjg'
tags:
  - nvd
  - ghsa
  - maven
  - cve.org
epss: 0.00294
epssPercentile: 0.21859
aliases:
  - GHSA-p2jm-6hj6-9rjg
ecosystem: maven
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T20:13:26.081737Z'
ingestedAt: '2026-10-08T16:52:14.774Z'
---

## Overview

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the default ThreadSafeCookieStore does not retain whether a Set-Cookie response used a secure transport. It accepts Secure cookies received over plaintext and permits insecure cookies to overlay or delete existing Secure cookies with matching scope. An attacker controlling a plaintext same-site response can consequently plant, replace, or remove cookie state later sent to an HTTPS origin, enabling session fixation, CSRF-token replacement, or loss of security-relevant state. This issue is fixed in version 3.0.14.

## Remediation

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

## Package advisory (CVE-2026-107226)

Affected packages:

- `org.asynchttpclient:async-http-client >= 3.0.0, <= 3.0.13`
- `org.asynchttpclient:async-http-client >= 2.1.0, <= 2.16.1`

Patched in:

- `org.asynchttpclient:async-http-client 3.0.14`

Source: https://github.com/advisories/GHSA-p2jm-6hj6-9rjg