UBUNTU-CVE-2026-91150

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Source
https://ubuntu.com/security/CVE-2026-91150
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-91150
Upstream
Published
2026-11-12T00:00:00Z
Modified
2026-11-12T23:49:08Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size limit, leading to unbounded memory exhaustion and a denial of service in the cockpit-ws service.

References

Affected packages

Ubuntu:18.04:LTS
cockpit

Package

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

Affected ranges

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

Affected versions

Other
151-1
156-1
157-1
158-1
160-1
161-1
162-1
163-1
164-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-dashboard",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-docker",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-machines",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-tests",
            "binary_version": "164-1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "164-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"
Ubuntu:20.04:LTS
cockpit

Package

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

Affected ranges

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

Affected versions

202.*
202.1-1
Other
204-1
206-1
207-1
208-1
210-1
211-1
212-1
213-1
215-1
214.*
214.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-dashboard",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-machines",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-pcp",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-tests",
            "binary_version": "215-1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "215-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"
Ubuntu:22.04:LTS
cockpit

Package

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

Affected ranges

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

Affected versions

Other
252-1
256-1
257-1
258-1
259-1
260-1
261-1
262-1
263-1
264-1
264-1ubuntu0.*
264-1ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-pcp",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-sosreport",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-tests",
            "binary_version": "264-1ubuntu0.22.04.1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "264-1ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"
Ubuntu:24.04:LTS
cockpit

Package

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

Affected ranges

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

Affected versions

300.*
300.1-1
Other
303-1
304-1
305-1
306-1
307-1
308-1
309-1
311-1
312-1build2
314-1
310.*
310.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-pcp",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-sosreport",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-tests",
            "binary_version": "314-1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "314-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"
Ubuntu:26.04:LTS
cockpit

Package

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

Affected ranges

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

Affected versions

Other
346-1
348-1
350-1
352-1
354-1
355-1
356-1
360-1
353.*
353.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-sosreport",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "360-1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "360-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"
Ubuntu:26.10
cockpit

Package

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

Affected ranges

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

Affected versions

Other
360-1
362-1
365-1
367-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cockpit",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-bridge",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-networkmanager",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-packagekit",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-sosreport",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-storaged",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-system",
            "binary_version": "367-1"
        },
        {
            "binary_name": "cockpit-ws",
            "binary_version": "367-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91150.json"