Technology · Checkmk
Checkmk vulnerabilities
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Junglewise Threat Intelligence has tracked 34 vulnerabilities in Checkmk: 6 in the last 7 days and 14 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-121374, was published on 11 November 2026. 6 vulnerabilities in the last four weeks, up 200% on the four before (2).
- Last 7 days
- 6
- Last 90 days
- 14
- Critical, all time
- 0
- Exploited in the wild
- 0
About Checkmk
Open-source monitoring software for IT infrastructure and application performance.
Latest Checkmk vulnerabilities
- CVE-2026-121374: Checkmk Kubernetes special agent argument injectioninfo
- CVE-2026-120495: Checkmk Robotmk path traversal in HTML loginfo
- CVE-2026-118965: Checkmk path traversal in remote site label synchronizationinfo
- CVE-2026-111573: Checkmk Windows agent privilege escalation via unprotected data directoryinfo
- CVE-2026-103682: Checkmk Jolokia agent password exposure in process listinfo
- CVE-2026-103674: Checkmk NetApp ONTAP password exposure in process listinfo
- CVE-2026-117611: Checkmk improper certificate validation in CA storeinfo
- CVE-2026-113461: Checkmk mk-oracle local privilege escalation via unsafe Oracle home loadinginfo
- CVE-2026-14452: Checkmk Setup search parameter open redirect and XSSinfoEPSS 0.4%
- CVE-2026-92882: Checkmk REST API credential exposure in host configurationinfoEPSS 0.4%
- CVE-2026-90990: Checkmk Livestatus injection in monitoring filter valuesinfoEPSS 0.4%
- CVE-2026-15937: Checkmk improper certificate validation in agent receiverinfoCVSS 5.3EPSS 0.1%
- CVE-2026-17548: Checkmk missing authorization in background job viewinginfoCVSS 5.3EPSS 0.2%
- CVE-2026-7485: Checkmk incorrect authorization in frozen BI aggregationsinfoCVSS 2.3EPSS 0.4%
- CVE-2026-15227: Checkmk missing authorization in reporting componentinfoCVSS 5.3
- CVE-2026-8593: Checkmk improper permission enforcement in Business Intelligence APIinfoCVSS 5.3
- CVE-2026-14852: Checkmk privilege escalation in mk_sap_hana agent plugininfoCVSS 5.2
- CVE-2026-9549: Checkmk stored XSS in service discovery active check outputinfoCVSS 4.8
- CVE-2026-8833: Checkmk cross-site scripting via URL validation bypassinfoCVSS 8.5
- CVE-2026-8078: Checkmk stored XSS in global settings change loginfoCVSS 4.8
- CVE-2026-7765: Checkmk incorrect authorization in User Messages dashboard widgetinfoCVSS 6.3
- CVE-2026-7186: Checkmk stored XSS in URL dashboard widgetinfoCVSS 8.5
- CVE-2024-47091: Checkmk mk_mysql agent plugin privilege escalation on WindowsinfoCVSS 5.2
- CVE-2026-33457: Checkmk Livestatus injection in prediction graph pagemediumCVSS 6.3
- CVE-2026-33456: Checkmk Livestatus injection in notification test modehighCVSS 7.6
Most severe Checkmk vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-39663: Cross-Site Scripting (XSS) vulnerability in Checkmk's distributed monitoring allows a compromised remote site to…highCVSS 8.4EPSS 0.6%
- CVE-2026-33456: Checkmk Livestatus injection in notification test modehighCVSS 7.6
- CVE-2025-64998: Checkmk session hijacking via session signing secret exposurehighCVSS 7.2
- CVE-2026-33457: Checkmk Livestatus injection in prediction graph pagemediumCVSS 6.3
- CVE-2026-33455: Checkmk Livestatus injection in monitoring quicksearchmediumCVSS 6.3
- CVE-2025-58121: Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version…mediumCVSS 5.4EPSS 0.2%
- CVE-2025-58122: Insufficient permission validation in Checkmk 2.4.0 before version 2.4.0p16 allows low-privileged users to modify…mediumCVSS 5.4EPSS 0.2%
- CVE-2026-20915: Checkmk stored XSS in Pending Changes sidebarmediumCVSS 5.4EPSS 0.1%
- CVE-2026-33276: Checkmk stored XSS in Unified Search via host or service namesmediumCVSS 5.4EPSS 0.1%
- CVE-2025-65000: SSH private keys of the "Remote alert handlers (Linux)" rule were exposed in the rule page's HTML source in Checkmk <=…mediumCVSS 5.3EPSS 0.2%
Vulnerabilities per week
6 vulnerabilities in the last four weeks, up 200% on the four before (2). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 1 | 0 | |
| 24 Aug 2026 | 1 | 0 | |
| 31 Aug 2026 | 1 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 2 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 1 | 0 | |
| 26 Oct 2026 | 1 | 0 | |
| 2 Nov 2026 | 3 | 0 | |
| 9 Nov 2026 | 3 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Checkmk vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/checkmk)<a href="https://junglewise.ai/threats/technologies/checkmk"><img src="https://junglewise.ai/threats/technologies/checkmk/badge.svg" alt="Checkmk vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/checkmk.json, and this page as text at https://junglewise.ai/threats/technologies/checkmk.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Checkmk vulnerabilities", https://junglewise.ai/threats/technologies/checkmk, 11 November 2026.