UBUNTU-CVE-2026-91149

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Source

https://ubuntu.com/security/CVE-2026-91149

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91149.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-91149

Upstream

CVE-2026-91149

Published

2026-09-18T17:17:00Z

Modified

2026-09-23T23:39:28Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A flaw was found in Cockpit. An unauthenticated remote attacker can exploit this vulnerability by initiating and sustaining numerous simultaneous connections to the cockpit-tls service. This forces the service to create an unbounded number of detached threads, consuming system resources such as memory and file descriptors. The primary consequence is a denial of service (DoS), leading to degradation or complete unavailability of the Cockpit service for legitimate users.

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-2026-91149.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-2026-91149.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-2026-91149.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-2026-91149.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-2026-91149.json"