UBUNTU-CVE-2026-40468

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Source
https://ubuntu.com/security/CVE-2026-40468
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40468
Upstream
  • CVE-2026-40468
Downstream
Related
Published
2026-07-13T13:16:00Z
Modified
2026-07-23T01:15:34Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L CVSS Calculator
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.

References

Affected packages

Ubuntu:22.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:5.1.0-1ubuntu0.2

Affected versions

1:5.*
1:5.1.0-1build1
1:5.1.0-1build2
1:5.1.0-1build3
1:5.1.0-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:5.1.0-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:24.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:5.2.1-2ubuntu0.1

Affected versions

1:5.*
1:5.2.1-2
1:5.2.1-2build2
1:5.2.1-2build3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:5.2.1-2ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:26.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:5.3.2-1ubuntu1.1

Affected versions

1:5.*
1:5.3.2-1build1
1:5.3.2-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:5.3.2-1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:Pro:14.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:4.0.1+dfsg-2.1ubuntu2+esm2

Affected versions

1:4.*
1:4.0.1+dfsg-2.1ubuntu2
1:4.0.1+dfsg-2.1ubuntu2+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:4.0.1+dfsg-2.1ubuntu2+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:Pro:16.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:4.1.3+dfsg-0.1ubuntu0.1~esm2

Affected versions

1:4.*
1:4.1.1+dfsg-1
1:4.1.3+dfsg-0.1
1:4.1.3+dfsg-0.1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:4.1.3+dfsg-0.1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:Pro:18.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:4.1.4+dfsg-1ubuntu0.1~esm2

Affected versions

1:4.*
1:4.1.4+dfsg-1
1:4.1.4+dfsg-1build1
1:4.1.4+dfsg-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:4.1.4+dfsg-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"
Ubuntu:Pro:20.04:LTS
gawk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:5.0.1+dfsg-1ubuntu0.1+esm1

Affected versions

1:4.*
1:4.2.1+dfsg-1.1build1
1:5.*
1:5.0.1+dfsg-1
1:5.0.1+dfsg-1ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "gawk",
            "binary_version": "1:5.0.1+dfsg-1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40468.json"