UBUNTU-CVE-2026-125040

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-125040
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-125040
Upstream
Published
2026-11-10T00:00:00Z
Modified
2026-11-11T09:39:20Z
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 flaw was found in the SRT and WebVTT subtitle parser in GStreamer's gst-plugins-base. While sanitizing inline subtitle markup, the parser repeatedly searches the remaining text with unanchored regular expressions. A crafted subtitle cue with a long line of unmatched markup-like text can force quadratic CPU use and make a GStreamer-based application unresponsive.

References

Affected packages

Ubuntu:22.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.18.5-1
1.19.90-1
1.20.0-1
1.20.0-2
1.20.1-1
1.20.1-1ubuntu0.1
1.20.1-1ubuntu0.2
1.20.1-1ubuntu0.4
1.20.1-1ubuntu0.5
1.20.1-1ubuntu0.6
1.20.1-1ubuntu0.7
1.20.1-1ubuntu0.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.20.1-1ubuntu0.8"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.20.1-1ubuntu0.8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:24.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.22.6-1
1.22.7-1
1.22.8-1
1.22.10-1
1.24.1-1
1.24.1-1build1
1.24.2-1
1.24.2-1ubuntu0.1
1.24.2-1ubuntu0.2
1.24.2-1ubuntu0.3
1.24.2-1ubuntu0.4
1.24.2-1ubuntu0.5
1.24.2-1ubuntu0.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.24.2-1ubuntu0.6"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.24.2-1ubuntu0.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:26.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.26.6-1
1.27.2-3
1.27.2-3build1
1.27.90-1
1.28.0-1
1.28.1-1
1.28.2-1
1.28.2-1ubuntu0.1
1.28.2-1ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.28.2-1ubuntu0.2"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.28.2-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:26.10
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=stonking

Affected ranges

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

Affected versions

1.*
1.28.2-1
1.28.3-1
1.28.4-1
1.28.6-1
1.28.6-2
1.28.7-1
1.28.7-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.28.7-1ubuntu0.1"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.28.7-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:Pro:16.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

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

Affected versions

1.*
1.6.0-1ubuntu1
1.6.1-1ubuntu1
1.6.2-1ubuntu1
1.7.1-1ubuntu1
1.7.2-1ubuntu1
1.7.90-1ubuntu1
1.7.91-1ubuntu1
1.8.0-1ubuntu1
1.8.1-1ubuntu0.1
1.8.2-1ubuntu0.1
1.8.2-1ubuntu0.2
1.8.3-1ubuntu0.1
1.8.3-1ubuntu0.2
1.8.3-1ubuntu0.3
1.8.3-1ubuntu0.3+esm1
1.8.3-1ubuntu0.3+esm2
1.8.3-1ubuntu0.3+esm3
1.8.3-1ubuntu0.3+esm4
1.8.3-1ubuntu0.3+esm5
1.8.3-1ubuntu0.3+esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.8.3-1ubuntu0.3+esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:Pro:18.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=esm-infra%2Fbionic

Affected ranges

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

Affected versions

1.*
1.12.3-1
1.12.4-1
1.13.1-1ubuntu1
1.13.91-1ubuntu1
1.14.0-1ubuntu1
1.14.0-2ubuntu1
1.14.1-1ubuntu1~ubuntu18.04.1
1.14.1-1ubuntu1~ubuntu18.04.2
1.14.4-1ubuntu1.1~ubuntu18.04.1
1.14.5-0ubuntu1~18.04.1
1.14.5-0ubuntu1~18.04.2
1.14.5-0ubuntu1~18.04.3
1.14.5-0ubuntu1~18.04.3+esm1
1.14.5-0ubuntu1~18.04.3+esm2
1.14.5-0ubuntu1~18.04.3+esm3
1.14.5-0ubuntu1~18.04.3+esm4
1.14.5-0ubuntu1~18.04.3+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.14.5-0ubuntu1~18.04.3+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"
Ubuntu:Pro:20.04:LTS
gst-plugins-base1.0

Package

Name
gst-plugins-base1.0
Purl
pkg:deb/ubuntu/gst-plugins-base1.0?arch=source&distro=esm-infra%2Ffocal

Affected ranges

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

Affected versions

1.*
1.16.1-1
1.16.2-1
1.16.2-2
1.16.2-2ubuntu3
1.16.2-2ubuntu4
1.16.2-4
1.16.2-4ubuntu0.1
1.16.3-0ubuntu1
1.16.3-0ubuntu1.1
1.16.3-0ubuntu1.2
1.16.3-0ubuntu1.3
1.16.3-0ubuntu1.4
1.16.3-0ubuntu1.4+esm1
1.16.3-0ubuntu1.4+esm2
1.16.3-0ubuntu1.4+esm3
1.16.3-0ubuntu1.4+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-gst-plugins-base-1.0",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "gstreamer1.0-alsa",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "gstreamer1.0-gl",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "gstreamer1.0-plugins-base-apps",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "gstreamer1.0-x",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "libgstreamer-gl1.0-0",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        },
        {
            "binary_name": "libgstreamer-plugins-base1.0-0",
            "binary_version": "1.16.3-0ubuntu1.4+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-125040.json"