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CVE-2026-7765

User Messages widget leaked issuer messages on shared dashboards PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Checkmk GmbH / Checkmkaffected 2.5.0 before 2.5.0p5

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.