UBUNTU-CVE-2026-90783

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Source
https://ubuntu.com/security/CVE-2026-90783
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-90783
Upstream
  • CVE-2026-90783
Published
2026-09-13T13:16:00Z
Modified
2026-09-16T14:03:34Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

MKVToolNix through 101.0 contains a heap buffer overflow in the bundled avilib library's ODML superindex parser due to integer wraparound in 32-bit arithmetic. Attackers can craft a malicious AVI file with oversized entry counts that cause an undersized heap allocation, allowing a heap buffer overflow when the file is parsed with mkvmerge.

References

Affected packages

Ubuntu:16.04:LTS
mkvtoolnix

Package

Name
mkvtoolnix
Purl
pkg:deb/ubuntu/mkvtoolnix?arch=source&distro=xenial

Affected ranges

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

Affected versions

8.*
8.2.0-2
8.5.1-1
8.5.2-1
8.6.0-1
8.6.1-1
8.7.0-1
8.8.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "8.8.0-1"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "8.8.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"
Ubuntu:18.04:LTS
mkvtoolnix

Package

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

Affected ranges

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

Affected versions

15.*
15.0.0-1
15.0.0-1build1
17.*
17.0.0-2
18.*
18.0.0-1
19.*
19.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "19.0.0-1"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "19.0.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"
Ubuntu:20.04:LTS
mkvtoolnix

Package

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

Affected ranges

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

Affected versions

37.*
37.0.0-1build1
38.*
38.0.0-1
39.*
39.0.0-1
40.*
40.0.0-1
40.0.0-3
41.*
41.0.0-1
42.*
42.0.0-1
43.*
43.0.0-1
43.0.0-1ubuntu1
43.0.0-1ubuntu2
44.*
44.0.0-1ubuntu1
45.*
45.0.0-1ubuntu1
45.0.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "45.0.0-2"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "45.0.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"
Ubuntu:22.04:LTS
mkvtoolnix

Package

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

Affected ranges

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

Affected versions

60.*
60.0.0-2
62.*
62.0.0-1build1
63.*
63.0.0-1
64.*
64.0.0-1
65.*
65.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "65.0.0-1"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "65.0.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"
Ubuntu:24.04:LTS
mkvtoolnix

Package

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

Affected ranges

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

Affected versions

78.*
78.0-2
79.*
79.0-1
80.*
80.0-1
81.*
81.0-1
81.0-1build1
82.*
82.0-1
82.0-1build1
82.0-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "82.0-1build2"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "82.0-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"
Ubuntu:26.04:LTS
mkvtoolnix

Package

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

Affected ranges

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

Affected versions

94.*
94.0-1
95.*
95.0-1
96.*
96.0-1
97.*
97.0-1
97.0-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mkvtoolnix",
            "binary_version": "97.0-1build1"
        },
        {
            "binary_name": "mkvtoolnix-gui",
            "binary_version": "97.0-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90783.json"