CVE-2026-33457
CWE-140Published: April 10, 2026· Updated: Apr 13, 2026
Official Description
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 sanitization of the service description value.
Technical Analysis
CVE-2026-33457 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2026-33457. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-140)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-33457 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts