HIGHRubyGems →
Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`
Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`
Affected packages
- concurrent-ruby— before 1.3.7
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/ruby-concurrency/concurrent-ruby/security/advisories/GHSA-h8w8-99g7-qmvj
- https://nvd.nist.gov/vuln/detail/CVE-2026-54904
- https://github.com/ruby-concurrency/concurrent-ruby/commit/6e37e0644b83b182971dc540d2e4bee38df61386
- https://github.com/ruby-concurrency/concurrent-ruby
- https://github.com/ruby-concurrency/concurrent-ruby/releases/tag/v1.3.7
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/concurrent-ruby/CVE-2026-54904.yml
- https://www.cve.org/CVERecord/SearchResults?query=CVE-2026-54904
Structured record: https://osv.dev/vulnerability/GHSA-h8w8-99g7-qmvj
Recommended response stack
Some links are affiliate links — HackTribune may earn a commission at no extra cost to you.
Get incidents like this as alerts for your stack.
Join the beta