3 known security vulnerabilities

  • highGHSA-h8w8-99g7-qmvj(CVE-2026-54904)

    Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`

Show 2 more vulnerabilities
2 low
  • lowGHSA-6wx8-w4f5-wwcr(CVE-2026-54906)

    Concurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

  • lowGHSA-wv3x-4vxv-whpp(CVE-2026-54905)

    Concurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity

Modern concurrency tools including agents, futures, promises, thread pools, actors, supervisors, and more. Inspired by Erlang, Clojure, Go, JavaScript, actors, and classic concurrency patterns.

Required Ruby Version

>= 1.9.3

Required Rubygems Version

> 1.3.1

Authors

Jerry D'Antonio, The Ruby Concurrency Team

Versions

  1. 1.3.8

    1. source

      1. 1.3.8 source July 19, 2026 (343 KB)
  2. 1.3.7

    1. source

      1. 1.3.7 source June 16, 2026 (342 KB)
  3. 1.3.6

    1. source

      1. 1.3.6 source December 13, 2025 (343 KB)
  4. 1.3.5

    1. source

      1. 1.3.5 source January 15, 2025 (342 KB)
  5. 1.3.4

    1. source

      1. 1.3.4 source August 10, 2024 (342 KB)
  6. 1.0.0.pre1

    1. source

      1. 1.0.0.pre1 source August 19, 2015 (115 KB)

    2. java

      1. 1.0.0.pre1 multi-abi August 19, 2015 (218 KB)
Show all versions (150 total)

SHA 256 checksum

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