CVE•Published 2026-09-16•Modified 2026-09-18•1 article on news•4 live references•NVD data
CVE-2026-90999
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
CWE-20Improper Input ValidationCWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')CWE-94Improper Control of Generation of Code ('Code Injection')CWE-116Improper Encoding or Escaping of OutputCWE-913Improper Control of Dynamically-Managed Code Resources
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.
Timeline
Published 2026-09-16
Modified 2026-09-18
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-90999Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-90999Censys host search filtered to this CVE id.
grep.app
CVE-2026-90999Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-90999GitHub code search for direct mentions.
Google dork
"CVE-2026-90999" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-90999 on GitHub.