CVE-2026-66066 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
CVE-2026-66066 is a vulnerability tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed July 30, 2026; most recent activity July 30, 2026.
A severe vulnerability in Ruby on Rails, tracked as CVE-2026-66066, enables unauthenticated attackers to read arbitrary files from servers and potentially execute malicious code. This flaw primarily affects applications…
CVE-2026-66066 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning CVE-2026-66066 on ThreatCluster is dated July 30, 2026.
Across ThreatCluster reporting, CVE-2026-66066 most frequently co-occurs with Zero-day Exploit, Libvips, Ruby On Rails.
The most significant recent cluster is “Critical Rails Vulnerability Allows Remote File Access and Code Execution” (2 articles · Updated July 30, 2026). CVE-2026-66066 appears across 1 threat cluster in total, listed above with sources.
CVE-2026-66066 appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.