What is CVE-2026-54906?

CVE-2026-54906 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. concurrent-ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Which CVE IDs does CVE-2026-54906 cover?

CVE-2026-54906 covers the following CVE IDs: CVE-2026-54906. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-54906?

CVE-2026-54906 has a CVSS v3 base score of 9.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-54906LowCVSS 9.8

concurrent-ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Vendor

Microsoft Security Response Center (MSRC)

Published

June 30, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-54906 →