CVE-2026-7765

published 2026-06-08

CVE-2026-7765: Incorrect authorization in the User Messages dashboard widget in Checkmk <2.5.0p5 causes the message-fetching endpoints to return the dashboard creator's…

Priority P4 29 medium 5.3 CVSS 3.1

AV N AC L PR N UI N S U C L I N A 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.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk	checkmk	—	—
checkmk_gmbh	checkmk	>= 2.5.0 < 2.5.0p5	2.5.0p5

CVSS provenance

nvd v3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd v4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CWE-863