Threats Tagged 'cwe-414'
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Threats Tagged 'cwe-414'
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CVE-2026-54906: CWE-414: Missing Lock Check in ruby-concurrency concurrent-rubyCVE-2026-54906 0 concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLock#release_write_lock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still running. Concurrent::ReadWriteLock#release_read_lock also decrements the shared counter even when no read lock is held. Calling it on a fresh lock changes the counter from 0 to -1, after which normal read acquisition raises Concurrent::ResourceLimitError. This is a synchronization correctness issue in the public Concurrent::ReadWriteLock API. This vulnerability is fixed in 1.3.7. Join the discussion | CVE Database V5 | 06/24/2026, 15:46:01 UTC Added: 06/24/2026, 16:24:15 UTC |
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