concurrent-ruby has 3 CVEs on record. The busiest recent month was June 2026 with 3.
CVEs per month
Last 12 months, by publish date
1025/101125/111225/120126/010226/020326/030426/040526/050626/060726/070826/080926/09
- Exploited share
- 0% vs 1% corpus
- Median CVSS
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- Publish → KEV
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- Last 90 days
- 0 prev 3
3
Total CVEs
0
Critical
0
CISA KEV
0
Exploited
Worst active — by depth score
CVE-2026-54904HighConcurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`41CVE-2026-54906LowConcurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption14CVE-2026-54905LowConcurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity14
concurrent-ruby vulnerabilities
CVEs affecting concurrent-ruby, newest first. Open any entry for full detail, references, and exploit status.
3 CVEsRSS
CVE-2026-54904HighConcurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`
Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`
▾ Twilightconcurrent-ruby · concurrent-rubyEPSS 0.67%via GHSA
CVE-2026-54905LowConcurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity
Concurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity
▾ Sunlitconcurrent-ruby · concurrent-rubyEPSS 0.15%via GHSA
CVE-2026-54906LowConcurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption
Concurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption
▾ Sunlitconcurrent-ruby · concurrent-rubyEPSS 0.25%via GHSA