CVE-2026-33455— Livestatus injection in monitoring quicksearch
Quick assessment
Affected
Checkmk GmbH Checkmk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.5.0b4之前版本存在安全漏洞，该漏洞源于监控快速搜索中搜索过滤器插件输入清理不足，可能导致Livestatus命令注入攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-33455
Vulnerability Information
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Vulnerability Title
Livestatus injection in monitoring quicksearch
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
分隔符转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Checkmk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.5.0b4之前版本存在安全漏洞，该漏洞源于监控快速搜索中搜索过滤器插件输入清理不足，可能导致Livestatus命令注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Checkmk GmbH | Checkmk | 2.5.0 ~ 2.5.0b4 | - |
|
II. Public POCs for CVE-2026-33455
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-33455 (1)
-
Werk #17988: Livestatus injection in monitoring quicksearch vendor-advisory
Same Patch Batch · Checkmk GmbH · 2026-04-10 · 3 CVEs total
| CVE-2026-33456 | Potential livestatus injection in notification test | |
| CVE-2026-33457 | Potential livestatus injection in prediction graph page |
IV. Related Vulnerabilities
Same product: Checkmk
-
CVE-2026-90990
Livestatus injection via monitoring filter values -
CVE-2026-92882
Redact SNMP community, SNMPv3 pass phrases, and IPMI passwor -
CVE-2026-77021
Missing decompression size limit in agent receiver allows me -
CVE-2026-15937
Agent receiver certificate confusion allows authentication w -
CVE-2026-17548
Missing authorization for viewing background jobs
Same vendor: Checkmk GmbH
-
CVE-2026-90990
Livestatus injection via monitoring filter values -
CVE-2026-92882
Redact SNMP community, SNMPv3 pass phrases, and IPMI passwor -
CVE-2026-77021
Missing decompression size limit in agent receiver allows me -
CVE-2026-15937
Agent receiver certificate confusion allows authentication w -
CVE-2026-17548
Missing authorization for viewing background jobs
Same weakness: CWE-140
-
CVE-2026-33457
Potential livestatus injection in prediction graph page -
CVE-2026-33456
Potential livestatus injection in notification test -
CVE-2025-52989
Junos OS and Junos OS Evolved: Annotate configuration comman -
CVE-2025-32918
Livestatus injection in autocomplete endpoint -
CVE-2025-48879
OctoPrint Vulnerable to Denial of Service through malformed
V. Comments for CVE-2026-33455
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