CVE-2026-54905
1 advisory.
RubyGems/concurrent-ruby CVE-2026-54905: medium 5.5
Concurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity
Action: Upgrade concurrent-ruby to 1.3.7 or later.
bundle update concurrent-rubyAffected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.3.7 | - |
Fixed versions
| 1.3.7 |
Sources
- osv: GHSA-wv3x-4vxv-whpp
- https://github.com/ruby-concurrency/concurrent-ruby/security/advisories/GHSA-wv3x-4vxv-whpp
- https://nvd.nist.gov/vuln/detail/CVE-2026-54905
- https://github.com/ruby-concurrency/concurrent-ruby
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/concurrent-ruby/CVE-2026-54905.yml
- https://www.cve.org/CVERecord/SearchResults?query=CVE-2026-54905
CVE-2026-54905 · published · modified · JSON