PT-2026-47285 · Checkmk Gmbh · Checkmk

Published 2026-06-08 · Updated 2026-06-08 · CVE-2026-7765

Mitre

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

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.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-7765

Affected Products

Checkmk

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-7765 · Security Note
• https://checkmk.com/werk/19815 · Vendor Advisory