CVE-2026-7765 (GCVE-0-2026-7765)

Vulnerability from cvelistv5 – Published: 2026-06-08 12:06 – Updated: 2026-06-08 13:04
VLAI
Title
User Messages widget leaked issuer messages on shared dashboards
Summary
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 public dashboard share token to read the issuer's personal messages by sending requests to the underlying endpoint, even without a User Messages widget present.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-08 13:04 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
URL Tags
https://checkmk.com/werk/19815 vendor-advisory
Impacted products
Vendor Product Version
Checkmk GmbH Checkmk Affected: 2.5.0 , < 2.5.0p5 (semver)
    cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*
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