CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
Description
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
HashiCorp
commercial·USaka hashicorp inc.
Red Hat Inc.
commercial·USaka red hat
ООО «Ред Софт»
commercial·RUaka red soft
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Impact
References
https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345
discuss.hashicorp.com
https://access.redhat.com/security/cve/CVE-2026-5807
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2459109
bugzilla.redhat.com
and 5 more references View all →
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