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Security Advisories

CGA-cp3f-3x48-c48x

Package

logstash-9.5

Component

concurrent-ruby

Latest update

Pending upstream fix

Aliases

  • CVE-2026-54905
  • GHSA-wv3x-4vxv-whpp

Severity

Unknown
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References

  • https://nvd.nist.gov/vuln/detail/CVE-2026-54905

Updates

Status

Pending upstream fix

Impact

concurrent-ruby at 1.1.9 is vulnerable, fixed in 1.3.7. The gem is a transitive dependency of logstash-core, whose gemspec constrains it to "> 1", "< 1.1.10"; no newer version resolves at build time, and 1.1.9 is the newest release the constraint permits. multi_json is pinned to "> 1.19.1" as a consequence of the same constraint, so the two are coupled. Awaiting a released Logstash whose logstash-core permits concurrent-ruby 1.3.7 or later. Upstream reference: https://github.com/elastic/logstash/issues/13956

Status

Under investigation


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