Is CVE-2026-73059 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73059?

CVE-2026-73059 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-73059

Description

stoatchat before 0.15.0 contains a permission bypass vulnerability in the message_fetch route that checks only ViewChannel permission instead of requiring ReadMessageHistory. Attackers with ViewChannel access but ReadMessageHistory denied can retrieve individual message content by ID, bypassing the intended history restriction enforced by bulk read routes.