CVE-2026-5807: CWE-770: Allocation of Resources Without Limits or Throttling in HashiCorp Vault
CVE-2026-5807 is a denial-of-service vulnerability in HashiCorp Vault where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations. This abuse occupies the single in-progress operation slot, blocking legitimate operators from completing these critical workflows. The vulnerability affects versions prior to Vault Community Edition 2. 0. 0 and Vault Enterprise 2. 0. 0. It has a high severity with a CVSS score of 7. 5. No known exploits are reported in the wild.
AI Analysis
Technical Summary
HashiCorp Vault versions before 2.0.0 are vulnerable to a denial-of-service condition (CWE-770) where an unauthenticated attacker can repeatedly start or cancel root token generation or rekey operations. Vault allows only one such operation in progress at a time; by occupying this slot, attackers prevent legitimate users from completing these workflows. This vulnerability does not impact confidentiality or integrity but causes availability disruption. The issue is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.
Potential Impact
The vulnerability results in denial of service by blocking legitimate root token generation or rekey operations, which are critical for Vault administration. There is no impact on confidentiality or integrity. The attack requires no privileges or user interaction and can be performed remotely. This can disrupt operational workflows but does not lead to data compromise.
Mitigation Recommendations
A fix is available in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0. Users should upgrade to these versions or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-5807: CWE-770: Allocation of Resources Without Limits or Throttling in HashiCorp Vault
Description
CVE-2026-5807 is a denial-of-service vulnerability in HashiCorp Vault where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations. This abuse occupies the single in-progress operation slot, blocking legitimate operators from completing these critical workflows. The vulnerability affects versions prior to Vault Community Edition 2. 0. 0 and Vault Enterprise 2. 0. 0. It has a high severity with a CVSS score of 7. 5. No known exploits are reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
HashiCorp Vault versions before 2.0.0 are vulnerable to a denial-of-service condition (CWE-770) where an unauthenticated attacker can repeatedly start or cancel root token generation or rekey operations. Vault allows only one such operation in progress at a time; by occupying this slot, attackers prevent legitimate users from completing these workflows. This vulnerability does not impact confidentiality or integrity but causes availability disruption. The issue is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.
Potential Impact
The vulnerability results in denial of service by blocking legitimate root token generation or rekey operations, which are critical for Vault administration. There is no impact on confidentiality or integrity. The attack requires no privileges or user interaction and can be performed remotely. This can disrupt operational workflows but does not lead to data compromise.
Mitigation Recommendations
A fix is available in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0. Users should upgrade to these versions or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HashiCorp
- Date Reserved
- 2026-04-08T14:43:57.845Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e1b7b882d89c981f6ce769
Added to database: 4/17/2026, 4:31:52 AM
Last enriched: 4/17/2026, 4:46:48 AM
Last updated: 4/17/2026, 5:53:18 AM
Views: 5
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