Excessive Resource Consumption Vulnerability in HashiCorp Vault
CVE-2025-6203

7.5HIGH

Key Information:

Vendor

Hashicorp
Status
Vault
Vault Enterprise
Vendor
CVE Published:
28 August 2025

What is CVE-2025-6203?

A vulnerability in HashiCorp Vault allows a malicious user to submit a crafted payload that conforms to the default request size limit. This can lead to excessive memory and CPU consumption, resulting in potential timeouts in Vault’s auditing subroutine. Consequently, this may cause the Vault server to become unresponsive. The issue has been addressed in Vault Community Edition 1.20.3 and Vault Enterprise versions 1.20.3, 1.19.9, 1.18.14, and 1.16.25.

Affected Version(s)

Vault 64 bit 1.15.0 < 1.20.2

Vault Enterprise 64 bit 0 < 1.20.2

References

https://discuss.hashicorp.com/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-6203 : Excessive Resource Consumption Vulnerability in HashiCorp Vault