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VULNERABILITIES

CVE-2026-7765 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://checkmk.com/werk/19815 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-863Incorrect Authorization[email protected]

Affected Products

ProductVersions
checkmk checkmk
2.5.0 -
2.5.0 b1
2.5.0 b2
2.5.0 b3
2.5.0 p1

CPE

  • cpe:2.3:a:checkmk:checkmk:2.5.0:-:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b1:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b2:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b3:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:p1:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:p2:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:p3:*:*:*:*:*:*
  • cpe:2.3:a:checkmk:checkmk:2.5.0:p4:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-7765
NVD Published Date:
Jun 8, 2026
NVD Last Modified:
Jul 23, 2026
Source:
[email protected]
CVE-2026-7765 Details - Not Deferred