CVE-2025-6203
Last modified
CVE-2025-6203 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. EPSS estimates a 0.70% chance of exploitation in the next 30 days.
Description
A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hashicorp | Vault | >= 1.15.0, < 1.16.27 |
| Hashicorp | Vault | >= 1.15.0, < 1.21.0 |
| Hashicorp | Vault | >= 1.18.0, < 1.18.15 |
| Hashicorp | Vault | >= 1.19.0, < 1.19.11 |
| Hashicorp | Vault | >= 1.20.0, < 1.20.5 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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