Multi-Stage Trust-Boundary Violation in Sentry Seer by Sentry

CVE-2026-90999

What is CVE-2026-90999?

Sentry Seer is susceptible to a multi-stage trust-boundary violation, enabling attackers to exploit this vulnerability by submitting unauthorized telemetry. Through this attack vector, attackers can execute malicious code within a privileged automation environment, bypassing authentication measures and gaining unauthorized access without needing to compromise the victim's Sentry account or infrastructure.

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