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ruby-concurrency

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ProductCVEsExploitedLatest
concurrent-ruby3–Jun 24, 2026

Exploited and recent CVEs

  • CVE-2026-54906 Low 2.1 concurrent-ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption 0.2%
  • CVE-2026-54904 High 8.2 concurrent-ruby: `AtomicReference#update` livelocks when the stored value is `Float::NAN` 0.7%
  • CVE-2026-54905 Low 2.0 concurrent-ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity 0.2%