UBUNTU-CVE-2026-40026

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Source
https://ubuntu.com/security/CVE-2026-40026
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40026
Upstream
  • CVE-2026-40026
Published
2026-04-08T22:16:00Z
Modified
2026-05-20T16:25:38.733814676Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L CVSS Calculator
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
  • 4.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The Sleuth Kit through 4.14.0 contains an out-of-bounds read vulnerability in the ISO9660 filesystem parser where the parsesusp() function trusts lenid, lendes, and lensrc fields from the disk image to memcpy data into a stack buffer without verifying that the source data falls within the parsed SUSP block. An attacker can craft a malicious ISO image that causes reads past the end of the SUSP data buffer, and a zero-length SUSP entry can trigger an infinite parsing loop.

References

Affected packages

Ubuntu:18.04:LTS
sleuthkit

Package

Name
sleuthkit
Purl
pkg:deb/ubuntu/sleuthkit?arch=source&distro=bionic

Affected ranges

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

Affected versions

4.*
4.4.2-1
4.4.2-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk13",
            "binary_version": "4.4.2-3"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.4.2-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:20.04:LTS
sleuthkit

Package

Name
sleuthkit
Purl
pkg:deb/ubuntu/sleuthkit?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*
4.6.5-1
4.6.7-1
4.6.7-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk13",
            "binary_version": "4.6.7-1build1"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.6.7-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:22.04:LTS
sleuthkit

Package

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

Affected ranges

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

Affected versions

4.*
4.10.1+dfsg-1
4.11.0+dfsg-1
4.11.1+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk19",
            "binary_version": "4.11.1+dfsg-1"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.11.1+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:24.04:LTS
sleuthkit

Package

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

Affected ranges

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

Affected versions

4.*
4.12.0+dfsg-1
4.12.1+dfsg-1
4.12.1+dfsg-1.1ubuntu1
4.12.1+dfsg-1.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-1.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:25.10
sleuthkit

Package

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

Affected ranges

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

Affected versions

4.*
4.12.1+dfsg-1.1ubuntu2
4.12.1+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-3"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:26.04:LTS
sleuthkit

Package

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

Affected ranges

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

Affected versions

4.*
4.12.1+dfsg-3
4.12.1+dfsg-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk19t64",
            "binary_version": "4.12.1+dfsg-3build1"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.12.1+dfsg-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:Pro:14.04:LTS
sleuthkit

Package

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

Affected ranges

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

Affected versions

3.*
3.2.3-2ubuntu1
3.2.3-2ubuntu2
3.2.3-2.1
3.2.3-2.2
3.2.3-2.2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk3-3",
            "binary_version": "3.2.3-2.2ubuntu0.1~esm1"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "3.2.3-2.2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"
Ubuntu:Pro:16.04:LTS
sleuthkit

Package

Name
sleuthkit
Purl
pkg:deb/ubuntu/sleuthkit?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

4.*
4.1.3-11ubuntu2
4.1.3-12ubuntu1
4.2.0-3
4.2.0-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtsk13",
            "binary_version": "4.2.0-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "sleuthkit",
            "binary_version": "4.2.0-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40026.json"