{"schema_version":1,"title":"concurrent-ruby (RubyGems) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in concurrent-ruby (RubyGems): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-54906, was published on 24 June 2026.","url":"https://junglewise.ai/threats/technologies/concurrent-ruby","json_url":"https://junglewise.ai/threats/technologies/concurrent-ruby.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/concurrent-ruby","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":3},"latest":[{"cve":"CVE-2026-54906","cvss":4,"epss":0.0025,"slug":"cve-2026-54906-ruby-concurrency-concurrent-ruby-improper-locking-in","title":"ruby-concurrency concurrent-ruby improper locking in ReadWriteLock","severity":"medium","exploited":false,"published_at":"2026-06-24T17:17:29.55+00:00","url":"https://junglewise.ai/threats/cve-2026-54906-ruby-concurrency-concurrent-ruby-improper-locking-in"},{"cve":"CVE-2026-54905","cvss":3.1,"epss":0.0015,"slug":"cve-2026-54905-ruby-concurrent-ruby-mutual-exclusion-bypass-in","title":"Ruby concurrent-ruby mutual exclusion bypass in ReentrantReadWriteLock","severity":"low","exploited":false,"published_at":"2026-06-24T17:17:29.403+00:00","url":"https://junglewise.ai/threats/cve-2026-54905-ruby-concurrent-ruby-mutual-exclusion-bypass-in"},{"cve":"CVE-2026-54904","cvss":3.1,"epss":0.0067,"slug":"cve-2026-54904-ruby-concurrency-concurrent-ruby-denial-of-service-in","title":"ruby-concurrency concurrent-ruby denial of service in AtomicReference","severity":"high","exploited":false,"published_at":"2026-06-24T17:17:29.267+00:00","url":"https://junglewise.ai/threats/cve-2026-54904-ruby-concurrency-concurrent-ruby-denial-of-service-in"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"nokogiri (RubyGems)","slug":"nokogiri","vulnerabilities":27,"url":"https://junglewise.ai/threats/technologies/nokogiri"},{"name":"rack (RubyGems)","slug":"rack","vulnerabilities":14,"url":"https://junglewise.ai/threats/technologies/rack"},{"name":"oj (RubyGems)","slug":"oj","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/oj"},{"name":"jquery-rails (RubyGems)","slug":"jquery-rails","vulnerabilities":9,"url":"https://junglewise.ai/threats/technologies/jquery-rails"},{"name":"jquery-ui-rails (RubyGems)","slug":"jquery-ui-rails","vulnerabilities":8,"url":"https://junglewise.ai/threats/technologies/jquery-ui-rails"},{"name":"openc3 (RubyGems)","slug":"openc3","vulnerabilities":8,"url":"https://junglewise.ai/threats/technologies/openc3"},{"name":"lodash-rails (RubyGems)","slug":"lodash-rails","vulnerabilities":7,"url":"https://junglewise.ai/threats/technologies/lodash-rails"},{"name":"net-imap (RubyGems)","slug":"net-imap","vulnerabilities":7,"url":"https://junglewise.ai/threats/technologies/net-imap"},{"name":"loofah (RubyGems)","slug":"loofah","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/loofah"},{"name":"action_text-trix (RubyGems)","slug":"action-text-trix","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/action-text-trix"},{"name":"camaleon_cms (RubyGems)","slug":"camaleon-cms","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/camaleon-cms"},{"name":"fluentd (RubyGems)","slug":"fluentd","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/fluentd"}],"technology":{"hub":true,"name":"concurrent-ruby (RubyGems)","slug":"concurrent-ruby","vendor":{"name":"RubyGems","slug":"rubygems","url":"https://junglewise.ai/threats/vendors/rubygems"},"aliases":[],"homepage":"http://concurrent-ruby.com/","repo_url":"https://github.com/ruby-concurrency/concurrent-ruby","description":"A collection of concurrency abstractions and low-level interoperability utilities for Ruby.","url":"https://junglewise.ai/threats/technologies/concurrent-ruby"},"most_severe":[{"cve":"CVE-2026-54904","cvss":3.1,"epss":0.0067,"slug":"cve-2026-54904-ruby-concurrency-concurrent-ruby-denial-of-service-in","title":"ruby-concurrency concurrent-ruby denial of service in AtomicReference","severity":"high","exploited":false,"published_at":"2026-06-24T17:17:29.267+00:00","url":"https://junglewise.ai/threats/cve-2026-54904-ruby-concurrency-concurrent-ruby-denial-of-service-in"},{"cve":"CVE-2026-54906","cvss":4,"epss":0.0025,"slug":"cve-2026-54906-ruby-concurrency-concurrent-ruby-improper-locking-in","title":"ruby-concurrency concurrent-ruby improper locking in ReadWriteLock","severity":"medium","exploited":false,"published_at":"2026-06-24T17:17:29.55+00:00","url":"https://junglewise.ai/threats/cve-2026-54906-ruby-concurrency-concurrent-ruby-improper-locking-in"},{"cve":"CVE-2026-54905","cvss":3.1,"epss":0.0015,"slug":"cve-2026-54905-ruby-concurrent-ruby-mutual-exclusion-bypass-in","title":"Ruby concurrent-ruby mutual exclusion bypass in ReentrantReadWriteLock","severity":"low","exploited":false,"published_at":"2026-06-24T17:17:29.403+00:00","url":"https://junglewise.ai/threats/cve-2026-54905-ruby-concurrent-ruby-mutual-exclusion-bypass-in"}],"generated_at":"2026-09-26T17:07:00.185783+00:00"}