CVE-2026-7765 | THREATINT

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.

PUBLISHED Reserved 2026-05-04 | Published 2026-06-08 | Updated 2026-06-08 | Assigner Checkmk

MEDIUM: 6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-863: Incorrect Authorization

Product status

Default status

unaffected

2.5.0 (semver) before 2.5.0p5

affected

References

checkmk.com/werk/19815 vendor-advisory

cve.org (CVE-2026-7765)

nvd.nist.gov (CVE-2026-7765)

Download JSON