VulnSocial

CVE-2026-33456Disclosure(checkmk / checkmk)

LOWCVSS 7.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

checkmk CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-140

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • checkmk

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-04-10); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
checkmk
Products
checkmk

2 versions affected across 1 product

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-10: 1Mentions · 2026-04-12: 1Technical Details · 2026-04-10: 1Technical Details · 2026-04-12: 104-1004-12
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-33456 📊 Severity: 5.1 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-33456 #CVE-2026-33456 #CVE #Medium #CyberSecurity #InfoSec https://t.co/v5ysAebh4x

    Post summary

    A new CVE-2026-33456 with a CVSS score of 5.1 (medium risk) for multiple unspecified products is announced, but no exploit, PoC, patch, or active exploitation details are provided.

    0000031
    125 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-33456 Livestatus injection in the notification test mode in Checkmk &lt;2.5.0b4 and &lt;2.4.0p26 allows an authenticated user with access to the notification test page to inject … https://www.cve.org/CVERecord?id=CVE-2026-33456

    Post summary

    The text announces the discovery of a Livestatus injection vulnerability in Checkmk, describing affected versions and access conditions, but does not mention PoC, exploit code, exploitation activity, or a patch.

    0000056
    57.0K followersView on X
CPE platform detail35 entries

35 of 35 entries

PartVendorProductVersionTarget SWTarget HW
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.4.0--
Appcheckmkcheckmk2.5.0--
Appcheckmkcheckmk2.5.0--
Appcheckmkcheckmk2.5.0--

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