{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"ruby-concurrent","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NSZRSZ7TDFK8SN22D4FXES","modified_at":"2026-10-01T03:02:34.489966448Z","published_at":"2026-06-24T17:17:29.267Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-54904","https://security-tracker.debian.org/tracker/CVE-2026-54904"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-54904#Debian:13/ruby-concurrent","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-54904"}],"summary":"concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReference#update can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caus"}