MEDIUM
User Messages widget leaked issuer messages on shared dashboards
Published Jun 8, 2026
6.3
MEDIUMCVSS 4.0
EPSS 0.31%
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.
Affected products
-
- Version 2.5.0StatusaffectedConstraints<2.5.0p5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Checkmk GmbH | Checkmk | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (2)
- https://checkmk.com/werk/19815 vendor-advisoryVendor Advisory
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35051 Advisory
| Link | Providers | Tags |
|---|---|---|
| https://checkmk.com/werk/19815 | vendor-advisoryVendor Advisory | |
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35051 | Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Checkmk
Published Jun 8, 2026
Updated Jun 8, 2026
Reserved May 4, 2026
Link CVE-2026-7765
CISA Vulnrichment
Updated Jun 8, 2026
ENISA EUVD
EUVD-2026-35051 Assigner Checkmk
Published Jun 8, 2026
Updated Jun 8, 2026
Exploited since n/a
Link EUVD-2026-35051