REDHAT-BUG-2459109: High severity HashiCorp Vault Community Edition vulnerability

Published Apr 17, 2026
·
Updated

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.

Affected Software

2 affected components
HashiCorp Vault Community Edition<2.0.0
HashiCorp Vault Enterprise<2.0.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Vault Community Edition to a version that resolves this vulnerability.

    Fixed in 2.0.0
  2. Upgrade

    Upgrade Vault Enterprise to a version that resolves this vulnerability.

    Fixed in 2.0.0

Event History

Apr 17, 2026
Data Sourced
via Red Hat·05:01 AM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2459109?

The severity of REDHAT-BUG-2459109 is high with a score of 7.

2

How does REDHAT-BUG-2459109 affect HashiCorp Vault?

REDHAT-BUG-2459109 allows an unauthenticated attacker to trigger denial-of-service by occupying the operation slot for token generation or rekey operations.

3

What are the potential impacts of REDHAT-BUG-2459109?

The impact of REDHAT-BUG-2459109 is that legitimate operators may be blocked from completing critical workflows due to the denial-of-service condition.

4

What versions of Vault are impacted by REDHAT-BUG-2459109?

Both HashiCorp Vault Community Edition and HashiCorp Vault Enterprise are impacted by REDHAT-BUG-2459109.

5

How can I mitigate the risk of REDHAT-BUG-2459109?

To mitigate the risk of REDHAT-BUG-2459109, it is recommended to apply patches provided by HashiCorp to address this denial-of-service vulnerability.

Contact

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