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

🗓️ 19 Jun 2026 00:00:00Reported by RubySecType 
rubygems
 rubygems
🔗 rubysec.com👁 4 Views

ReadWriteLock release_write_lock allows releasing another thread's write lock; release_read_lock may decrement the counter with no reads.

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Vulners
Node
rubyconcurrent-rubyRange1.3.7

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19 Jun 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 42.1
SSVC
4