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CVE-2026-5807

Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations

Published: Apr 17, 2026Updated: Jul 15, 2026 Sources: CVE List NVD BDUCWE-770
7.5HIGH
NVD MITRE
EPSS Score
0.7%
Top 49.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-770

Affected Products

HashiCorp
commercial·USaka hashicorp inc.
VaultSaaSSaaS Service
Cloud & SaaS
Vault EnterpriseSaaSSaaS Service
Cloud & SaaS
Vault Community EditionSaaSSaaS Service
Cloud & SaaS
Red Hat Inc.
commercial·USaka red hat
Red Hat Openshift Data FoundationOn-prem
Operating Systems / linux-distro
Red Hat OpenShift Container PlatformOn-prem
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-5807?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

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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