Medium
async-http-client — security advisory
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.
- Products
- async-http-client
- Affected versions
- 1.6.5-1, 1.6.5-2, 1.6.5-2ubuntu0.1~esm1, 1.6.5-4, 1.6.5-5, 2.12.2-1, 2.12.3-1, 2.12.3-1ubuntu0.22.04.1, 2.12.3-1ubuntu0.24.04.1, 2.12.3-1ubuntu1, 2.12.3-1ubuntu1.1, 2.6.0-1, 2.6.0-1ubuntu0.1~esm1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-107226
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:40 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-107226
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
async-http-client
Fixed versions: Not specified
Complete source record
{
"id": "a1feb572e51e4dce92e574c91f9c4a9bb3b0fa94de9c8255e0b4f84dfb653944",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-107226",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-107226",
"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 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.",
"evidence": "osv:UBUNTU-CVE-2026-107226",
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{
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N"
},
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"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
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],
"database_specific": {
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},
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],
"modified": "2026-10-17T12:58:44.501742024Z",
"provider": "osv",
"upstream": [
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"references": [
"https://ubuntu.com/security/CVE-2026-107226",
"https://www.cve.org/CVERecord?id=CVE-2026-107226",
"https://github.com/AsyncHttpClient/async-http-client/commit/6ec7ee45034d154f502852a962d2891746fb82c1",
"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14",
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 358999,
"published_at": "2026-10-12T19:16:00+00:00"
}