Bug 2391547 (CVE-2025-6203) - CVE-2025-6203 github.com/hashicorp/vault: Vault unauthenticated denial of service
Summary: CVE-2025-6203 github.com/hashicorp/vault: Vault unauthenticated denial of ser...
Keywords:
Status: NEW
Alias: CVE-2025-6203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-08-28 20:01 UTC by OSIDB Bzimport
Modified: 2025-09-19 19:42 UTC (History)
7 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-08-28 20:01:45 UTC 
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.
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