UBUNTU-CVE-2026-85720

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Source
https://ubuntu.com/security/CVE-2026-85720
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-85720
Upstream
Published
2026-09-17T17:16:00Z
Modified
2026-09-23T23:36:45Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.0.0 until 2.16.1 and 3.0.12, a request using an HTTP proxy to reach an HTTPS origin can expose preemptive origin credentials because NettyRequestFactory and NettyRequestSender.sendRequestWithNewChannel attach Authorization to the plaintext CONNECT request before the TLS tunnel exists. Basic or Digest credentials and per-connection NTLM, Kerberos, or SPNEGO tokens intended for the origin are therefore visible to the proxy and to observers on the client-to-proxy hop. The tunneled request still receives origin Authorization after the tunnel is established, while Proxy-Authorization remains on CONNECT for its intended proxy recipient. This issue is fixed in versions 2.16.1 and 3.0.12.

References

Affected packages

Ubuntu:16.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.5-4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "1.6.5-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:18.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.5-4
1.6.5-5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "1.6.5-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:22.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.12.2-1
2.12.3-1
2.12.3-1ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "2.12.3-1ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:24.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.12.3-1
2.12.3-1ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "2.12.3-1ubuntu0.24.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:26.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.12.3-1
2.12.3-1ubuntu1
2.12.3-1ubuntu1.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "2.12.3-1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:Pro:14.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.5-1
1.6.5-2
1.6.5-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "1.6.5-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"
Ubuntu:Pro:20.04:LTS
async-http-client

Package

Name
async-http-client
Purl
pkg:deb/ubuntu/async-http-client?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.6.0-1
2.6.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libasync-http-client-java",
            "binary_version":  "2.6.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85720.json"