Bug 2459109 (CVE-2026-5807)

Summary: CVE-2026-5807 Vault: Vault: Denial of Service via unauthenticated root token generation or rekey operations
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: manissin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Vault. An unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations. This action occupies the single slot designated for in-progress operations, effectively preventing legitimate operators from completing critical administrative workflows. This vulnerability leads to a denial-of-service condition, impacting the availability of Vault's key management functions.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-04-17 05:01:17 UTC
Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.