USN-8971-1

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Source
https://ubuntu.com/security/notices/USN-8971-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8971-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8971-1
Upstream
Related
Published
2026-11-03T14:13:50Z
Modified
2026-11-04T03:43:10Z
Summary
gnome-shell vulnerability
Details

It was discovered that GNOME Shell did not properly validate icon dimensions when processing icons from a remote search provider. An attacker could possibly use this issue to cause GNOME Shell to crash, resulting in a denial of service, or expose sensitive information from memory.

References

Affected packages

Ubuntu:22.04:LTS / gnome-shell

Package

Name
gnome-shell
Purl
pkg:deb/ubuntu/gnome-shell?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
42.9-0ubuntu2.4

Affected versions

40.*
40.5-1ubuntu2
41.*
41.3-1ubuntu1
Other
42~beta-1ubuntu2
42~beta-1ubuntu3
42.*
42.0-1ubuntu1
42.0-2ubuntu1
42.1-0ubuntu0.1
42.2-0ubuntu0.2
42.4-0ubuntu0.22.04.1
42.5-0ubuntu1
42.9-0ubuntu2
42.9-0ubuntu2.1
42.9-0ubuntu2.2
42.9-0ubuntu2.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gnome-shell",
            "binary_version": "42.9-0ubuntu2.4"
        },
        {
            "binary_name": "gnome-shell-common",
            "binary_version": "42.9-0ubuntu2.4"
        },
        {
            "binary_name": "gnome-shell-extension-prefs",
            "binary_version": "42.9-0ubuntu2.4"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-91786",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8971-1.json"

Ubuntu:24.04:LTS / gnome-shell

Package

Name
gnome-shell
Purl
pkg:deb/ubuntu/gnome-shell?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
46.0-0ubuntu6~24.04.17

Affected versions

45.*
45.0-1ubuntu2
45.1-1ubuntu1
45.2-1ubuntu1
45.3-1ubuntu1
46.*
46.0-0ubuntu3.1
46.0-0ubuntu4
46.0-0ubuntu5
46.0-0ubuntu5.1
46.0-0ubuntu6~24.04.1
46.0-0ubuntu6~24.04.3
46.0-0ubuntu6~24.04.4
46.0-0ubuntu6~24.04.5
46.0-0ubuntu6~24.04.6
46.0-0ubuntu6~24.04.8
46.0-0ubuntu6~24.04.9
46.0-0ubuntu6~24.04.11
46.0-0ubuntu6~24.04.12
46.0-0ubuntu6~24.04.13
46.0-0ubuntu6~24.04.14
46.0-0ubuntu6~24.04.15
46.0-0ubuntu6~24.04.16

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gnome-shell",
            "binary_version": "46.0-0ubuntu6~24.04.17"
        },
        {
            "binary_name": "gnome-shell-common",
            "binary_version": "46.0-0ubuntu6~24.04.17"
        },
        {
            "binary_name": "gnome-shell-extension-prefs",
            "binary_version": "46.0-0ubuntu6~24.04.17"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-91786",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8971-1.json"

Ubuntu:26.04:LTS / gnome-shell

Package

Name
gnome-shell
Purl
pkg:deb/ubuntu/gnome-shell?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
50.1-0ubuntu1.5

Affected versions

49.*
49.0-1ubuntu1
49.1-5ubuntu1
49.2-1ubuntu1
49.2-1ubuntu2
Other
50~beta-0ubuntu3
50.*
50.0-0ubuntu2
50.0-1ubuntu1
50.0-1ubuntu2
50.0-1ubuntu3
50.1-0ubuntu1
50.1-0ubuntu1.1
50.1-0ubuntu1.2
50.1-0ubuntu1.3
50.1-0ubuntu1.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gnome-shell",
            "binary_version": "50.1-0ubuntu1.5"
        },
        {
            "binary_name": "gnome-shell-common",
            "binary_version": "50.1-0ubuntu1.5"
        },
        {
            "binary_name": "gnome-shell-extension-prefs",
            "binary_version": "50.1-0ubuntu1.5"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-91786",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8971-1.json"