Is CVE-2026-15541 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-15541?

CVE-2026-15541 has a CVSS v3 severity of HIGH (7.3).

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CVE-2026-15541

Description

A flaw has been found in will-moss Isaiah up to 1.36.9. The impacted element is the function Server.Handle of the file app/server/server/server.go of the component Master Websocket Handler. Executing a manipulation of the argument Agent can lead to missing authorization. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.