UBUNTU-CVE-2026-63718
- Source
- https://ubuntu.com/security/CVE-2026-63718
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63718.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-63718
- Upstream
- Downstream
- Related
- Published
- 2026-10-01T17:17:00Z
- Modified
- 2026-10-17T13:00:32Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.
- References
-
- https://ubuntu.com/security/CVE-2026-63718
- https://www.cve.org/CVERecord?id=CVE-2026-63718
- https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2026-63718
- https://httpd.apache.org/security/vulnerabilities_24.html
- http://www.openwall.com/lists/oss-security/2026/10/01/26
- https://ubuntu.com/security/notices/USN-8931-1
Affected packages
Ubuntu:Pro:20.04:LTS / apache2
Package
- Name
- apache2
- Purl
- pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra%2Ffocal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.4.41-4ubuntu3.23+esm9
Affected versions
2.*
2.4.41-1ubuntu1
2.4.41-4ubuntu1
2.4.41-4ubuntu2
2.4.41-4ubuntu3
2.4.41-4ubuntu3.1
2.4.41-4ubuntu3.3
2.4.41-4ubuntu3.4
2.4.41-4ubuntu3.5
2.4.41-4ubuntu3.6
2.4.41-4ubuntu3.7
2.4.41-4ubuntu3.8
2.4.41-4ubuntu3.9
2.4.41-4ubuntu3.10
2.4.41-4ubuntu3.11
2.4.41-4ubuntu3.12
2.4.41-4ubuntu3.13
2.4.41-4ubuntu3.14
2.4.41-4ubuntu3.15
2.4.41-4ubuntu3.16
2.4.41-4ubuntu3.17
2.4.41-4ubuntu3.19
2.4.41-4ubuntu3.20
2.4.41-4ubuntu3.21
2.4.41-4ubuntu3.23
2.4.41-4ubuntu3.23+esm2
2.4.41-4ubuntu3.23+esm3
2.4.41-4ubuntu3.23+esm4
2.4.41-4ubuntu3.23+esm5
2.4.41-4ubuntu3.23+esm6
2.4.41-4ubuntu3.23+esm7
2.4.41-4ubuntu3.23+esm8
Ecosystem specific
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.41-4ubuntu3.23+esm9"
}
]
}
Ubuntu:22.04:LTS / apache2
Package
- Name
- apache2
- Purl
- pkg:deb/ubuntu/apache2?arch=source&distro=jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.4.52-1ubuntu4.25
Affected versions
2.*
2.4.48-3.1ubuntu3
2.4.48-3.1ubuntu4
2.4.51-2ubuntu1
2.4.52-1ubuntu1
2.4.52-1ubuntu2
2.4.52-1ubuntu4
2.4.52-1ubuntu4.1
2.4.52-1ubuntu4.2
2.4.52-1ubuntu4.3
2.4.52-1ubuntu4.4
2.4.52-1ubuntu4.5
2.4.52-1ubuntu4.6
2.4.52-1ubuntu4.7
2.4.52-1ubuntu4.8
2.4.52-1ubuntu4.9
2.4.52-1ubuntu4.10
2.4.52-1ubuntu4.11
2.4.52-1ubuntu4.12
2.4.52-1ubuntu4.13
2.4.52-1ubuntu4.14
2.4.52-1ubuntu4.15
2.4.52-1ubuntu4.16
2.4.52-1ubuntu4.18
2.4.52-1ubuntu4.19
2.4.52-1ubuntu4.20
2.4.52-1ubuntu4.21
2.4.52-1ubuntu4.23
2.4.52-1ubuntu4.24
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.52-1ubuntu4.25"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.52-1ubuntu4.25"
}
]
}
Ubuntu:24.04:LTS / apache2
Package
- Name
- apache2
- Purl
- pkg:deb/ubuntu/apache2?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.4.58-1ubuntu8.17
Affected versions
2.*
2.4.57-2ubuntu2
2.4.57-2ubuntu3
2.4.58-1ubuntu1
2.4.58-1ubuntu2
2.4.58-1ubuntu6
2.4.58-1ubuntu7
2.4.58-1ubuntu8
2.4.58-1ubuntu8.1
2.4.58-1ubuntu8.2
2.4.58-1ubuntu8.3
2.4.58-1ubuntu8.4
2.4.58-1ubuntu8.5
2.4.58-1ubuntu8.6
2.4.58-1ubuntu8.7
2.4.58-1ubuntu8.8
2.4.58-1ubuntu8.10
2.4.58-1ubuntu8.11
2.4.58-1ubuntu8.12
2.4.58-1ubuntu8.13
2.4.58-1ubuntu8.15
2.4.58-1ubuntu8.16
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.58-1ubuntu8.17"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.58-1ubuntu8.17"
}
]
}
Ubuntu:26.10 / apache2
Package
- Name
- apache2
- Purl
- pkg:deb/ubuntu/apache2?arch=source&distro=stonking
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Ecosystem specific
{
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.68-1ubuntu4"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.68-1ubuntu4"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.68-1ubuntu4"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.68-1ubuntu4"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.68-1ubuntu4"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.68-1ubuntu4"
}
]
}
Ubuntu:26.04:LTS / apache2
Package
- Name
- apache2
- Purl
- pkg:deb/ubuntu/apache2?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed2.4.66-2ubuntu2.6
Affected versions
2.*
2.4.64-1ubuntu3
2.4.65-3ubuntu1
2.4.66-2ubuntu1
2.4.66-2ubuntu2
2.4.66-2ubuntu2.1
2.4.66-2ubuntu2.2
2.4.66-2ubuntu2.4
2.4.66-2ubuntu2.5
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.66-2ubuntu2.6"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.66-2ubuntu2.6"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.66-2ubuntu2.6"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.66-2ubuntu2.6"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.66-2ubuntu2.6"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.66-2ubuntu2.6"
}
]
}