UBUNTU-CVE-2026-33455

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Source

https://ubuntu.com/security/CVE-2026-33455

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33455.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-33455

Upstream

CVE-2026-33455

Published

2026-04-10T09:16:00Z

Modified

2026-04-27T18:56:53.825411Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Livestatus injection in the monitoring quicksearch in Checkmk <2.5.0b4 allows an authenticated attacker to inject livestatus commands via the search query due to insufficient input sanitization in search filter plugins.

References

Affected packages

Ubuntu:Pro:16.04:LTS / check-mk

Package

Name: check-mk
Purl: pkg:deb/ubuntu/check-mk@1.2.6p12-1ubuntu0.16.04.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.2.6p5-1

1.2.6p12-1

1.2.6p12-1ubuntu0.16.04.1

1.2.6p12-1ubuntu0.16.04.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent-logwatch"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-icinga"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-nagios3"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-livestatus"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-multisite"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-server"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33455.json"

Ubuntu:18.04:LTS / check-mk