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CVE-2026-8593

Medium priority
Needs evaluation

Improper permission enforcement in Checkmk versions 2.5.0 before 2.5.0p9, 2.4.0 before 2.4.0p34, 2.3.0 before 2.3.0p49, and 2.2.0 (EOL) allows users without permissions to view and modify BI packs and rules

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-14852

Medium priority
Needs evaluation

Privilege escalation in Checkmk versions 2.5.0 before 2.5.0p9, 2.4.0 before 2.4.0p34, 2.3.0 before 2.3.0p49, and 2.2.0 (EOL) allows a local unprivileged user to execute arbitrary commands as root by starting a process crafted to...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-9549

Medium priority
Needs evaluation

Stored cross-site scripting in the service discovery active check output in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can configure active or custom checks to inject malicious HTML...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-8833

Medium priority
Needs evaluation

Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-8078

Medium priority
Needs evaluation

Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-7765

Medium priority
Needs evaluation

Incorrect authorization in the User Messages dashboard widget in Checkmk <2.5.0p5 causes the message-fetching endpoints to return the dashboard creator's messages rather than the viewer's, allowing an attacker who knows a valid...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-7186

Medium priority
Needs evaluation

Stored cross-site scripting in the URL dashboard widget in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-33457

Medium priority
Needs evaluation

Livestatus injection in the prediction graph page in Checkmk <2.5.0b4, <2.4.0p26, and <2.3.0p47 allows an authenticated user to inject arbitrary Livestatus commands via a crafted service name parameter due to insufficient...

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-33456

Medium priority
Needs evaluation

Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service description.

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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CVE-2026-33455

Medium priority
Needs evaluation

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.

1 affected package

check-mk

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
check-mk Not in release Not in release Not in release Needs evaluation
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