UBUNTU-CVE-2026-109088

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Source
https://ubuntu.com/security/CVE-2026-109088
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-109088
Upstream
Published
2026-10-27T17:16:00Z
Modified
2026-10-28T20:16:19Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A malicious X server could send malformed  RECORD EnableContext reolies that can cause a X client using the parse_reply_call_callback function in libXtst before 1.2.6 to enter a endless loop.

References

Affected packages

Ubuntu:22.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.3-1build2
2:1.2.3-1build3
2:1.2.3-1build4
2:1.2.3-1ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:24.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.3-1.1
2:1.2.3-1.1build1
2:1.2.3-1.1ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1.1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:26.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.5-1
2:1.2.5-1build1
2:1.2.5-1ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.5-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:26.10
libxtst

Package

Name
libxtst
Purl
pkg:deb/ubuntu/libxtst?arch=source&distro=stonking

Affected ranges

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

Affected versions

2:1.*
2:1.2.5-1build1
2:1.2.5-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.5-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:Pro:16.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.2-1
2:1.2.2-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.2-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:Pro:18.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.3-1
2:1.2.3-1ubuntu0.18.04.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.18.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"
Ubuntu:Pro:20.04:LTS
libxtst

Package

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

Affected ranges

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

Affected versions

2:1.*
2:1.2.3-1
2:1.2.3-1ubuntu0.20.04.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libxtst6",
            "binary_version":  "2:1.2.3-1ubuntu0.20.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109088.json"