CVE-2026-90999

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

Published Sep 16, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Functional Software
Functional Software sentry Seer
Vendors & Products Functional Software
Functional Software sentry Seer
Type Values Removed Values Added
Weaknesses CWE-116
CWE-74
CWE-913
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-94
Type Values Removed Values Added
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.
Title Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment
References

Sources

Status
PUBLISHED
Assigner
certcc
Published
Updated
Sep 18, 2026, 1:40 PM
Reserved
Sep 14, 2026, 3:22 PM
Status
Deferred
Published
Sep 16, 2026, 4:17 PM
Modified
Sep 18, 2026, 5:49 PM