UBUNTU-CVE-2026-44631

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Source
https://ubuntu.com/security/CVE-2026-44631
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-44631
Upstream
  • CVE-2026-44631
Downstream
Related
Published
2026-06-08T16:16:00Z
Modified
2026-07-21T13:44:55.049894242Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

References

Affected packages

Ubuntu:22.04:LTS
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.52-1ubuntu4.23

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.52-1ubuntu4.23"
        },
        {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.52-1ubuntu4.23"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
Ubuntu:24.04:LTS
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.58-1ubuntu8.15

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.58-1ubuntu8.15"
        },
        {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.58-1ubuntu8.15"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
Ubuntu:25.10
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=questing

Affected ranges

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

Affected versions

2.*
2.4.63-1ubuntu1
2.4.63-1ubuntu3
2.4.64-1ubuntu2
2.4.64-1ubuntu3
2.4.64-1ubuntu3.2
2.4.64-1ubuntu3.3
2.4.64-1ubuntu3.4
2.4.64-1ubuntu3.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.64-1ubuntu3.5"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.64-1ubuntu3.5"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.64-1ubuntu3.5"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.64-1ubuntu3.5"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.64-1ubuntu3.5"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.64-1ubuntu3.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
Ubuntu:26.04:LTS
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.66-2ubuntu2.4

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.66-2ubuntu2.4"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.66-2ubuntu2.4"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.66-2ubuntu2.4"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.66-2ubuntu2.4"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.66-2ubuntu2.4"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.66-2ubuntu2.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
Ubuntu:Pro:16.04:LTS
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.18-2ubuntu3.17+esm19

Affected versions

2.*
2.4.12-2ubuntu2
2.4.17-1ubuntu1
2.4.17-2ubuntu1
2.4.17-3ubuntu1
2.4.18-1ubuntu1
2.4.18-2ubuntu1
2.4.18-2ubuntu2
2.4.18-2ubuntu3
2.4.18-2ubuntu3.1
2.4.18-2ubuntu3.2
2.4.18-2ubuntu3.3
2.4.18-2ubuntu3.4
2.4.18-2ubuntu3.5
2.4.18-2ubuntu3.7
2.4.18-2ubuntu3.8
2.4.18-2ubuntu3.9
2.4.18-2ubuntu3.10
2.4.18-2ubuntu3.12
2.4.18-2ubuntu3.13
2.4.18-2ubuntu3.14
2.4.18-2ubuntu3.15
2.4.18-2ubuntu3.17
2.4.18-2ubuntu3.17+esm1
2.4.18-2ubuntu3.17+esm2
2.4.18-2ubuntu3.17+esm3
2.4.18-2ubuntu3.17+esm4
2.4.18-2ubuntu3.17+esm5
2.4.18-2ubuntu3.17+esm6
2.4.18-2ubuntu3.17+esm7
2.4.18-2ubuntu3.17+esm8
2.4.18-2ubuntu3.17+esm9
2.4.18-2ubuntu3.17+esm10
2.4.18-2ubuntu3.17+esm11
2.4.18-2ubuntu3.17+esm12
2.4.18-2ubuntu3.17+esm13
2.4.18-2ubuntu3.17+esm14
2.4.18-2ubuntu3.17+esm16
2.4.18-2ubuntu3.17+esm17
2.4.18-2ubuntu3.17+esm18

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.18-2ubuntu3.17+esm19"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
Ubuntu:Pro:18.04:LTS
apache2

Package

Name
apache2
Purl
pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.29-1ubuntu4.27+esm10

Affected versions

2.*
2.4.27-2ubuntu3
2.4.29-1ubuntu1
2.4.29-1ubuntu2
2.4.29-1ubuntu3
2.4.29-1ubuntu4
2.4.29-1ubuntu4.1
2.4.29-1ubuntu4.2
2.4.29-1ubuntu4.3
2.4.29-1ubuntu4.4
2.4.29-1ubuntu4.5
2.4.29-1ubuntu4.6
2.4.29-1ubuntu4.7
2.4.29-1ubuntu4.8
2.4.29-1ubuntu4.10
2.4.29-1ubuntu4.11
2.4.29-1ubuntu4.12
2.4.29-1ubuntu4.13
2.4.29-1ubuntu4.14
2.4.29-1ubuntu4.16
2.4.29-1ubuntu4.17
2.4.29-1ubuntu4.18
2.4.29-1ubuntu4.19
2.4.29-1ubuntu4.20
2.4.29-1ubuntu4.21
2.4.29-1ubuntu4.22
2.4.29-1ubuntu4.23
2.4.29-1ubuntu4.24
2.4.29-1ubuntu4.25
2.4.29-1ubuntu4.26
2.4.29-1ubuntu4.27
2.4.29-1ubuntu4.27+esm1
2.4.29-1ubuntu4.27+esm2
2.4.29-1ubuntu4.27+esm3
2.4.29-1ubuntu4.27+esm4
2.4.29-1ubuntu4.27+esm6
2.4.29-1ubuntu4.27+esm7
2.4.29-1ubuntu4.27+esm8
2.4.29-1ubuntu4.27+esm9

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.29-1ubuntu4.27+esm10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"
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
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.41-4ubuntu3.23+esm5

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

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "apache2",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "apache2-bin",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "apache2-data",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "apache2-suexec-custom",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "apache2-suexec-pristine",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "apache2-utils",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "libapache2-mod-md",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        },
        {
            "binary_name": "libapache2-mod-proxy-uwsgi",
            "binary_version": "2.4.41-4ubuntu3.23+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44631.json"