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Critical · 9.8 CVE-2026-90999 EUVD-2026-80853GHSA-vh55-q5m4-8wr6

Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment

Published Sep 16, 2026 · Updated Sep 18, 2026 · Assigned by certcc

Description

Sentry Seer is vulnerable to a multi-stage trust-boundary violation that allows unauthenticated attacker-controlled telemetry to become code that is executed by an agent in a privileged automation environment. An external attacker can submit fabricated Sentry events without having access to the victim’s Sentry account, source repository, or infrastructure.

Affected products

VendorProductAffectedFixed
Functional Software Sentry Seer Web site —

References