CVE-2025-6203— Vault unauthenticated denial of service through complex json payload
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-6203
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Vault unauthenticated denial of service through complex json payload
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
HashiCorp Vault Enterprise和HashiCorp Vault Community Edition 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp Vault Enterprise和HashiCorp Vault Community Edition都是美国HashiCorp公司的产品。HashiCorp Vault Enterprise是一个企业信息归档平台。HashiCorp Vault Community Edition是一款密钥管理工具。 HashiCorp Vault Enterprise和HashiCorp Vault Community Edition 1.20.3版本、1.19.9版本、1.18.14版本和1.16.
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| HashiCorp | Vault | 1.15.0 ~ 1.21.0 | - | |
| HashiCorp | Vault Enterprise | 1.15.0 ~ 1.21.2 | - |
II. Public POCs for CVE-2025-6203
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-6203
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: Vault
- CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Ro - CVE-2026-4525
Vault Token Leaked to Backends via Authorization: Bearer Pas - CVE-2026-5052
Vault Vulnerable to Server-Side Request Forgery in ACME Chal - CVE-2026-3605
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial - CVE-2025-12044
Vault Vulnerable to Denial of Service Due to Rate Limit Regr
Same vendor: HashiCorp
- CVE-2026-7776
Boundary Workers Vulnerable to Denial of Service During TLS - CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Ro - CVE-2026-4525
Vault Token Leaked to Backends via Authorization: Bearer Pas - CVE-2026-5052
Vault Vulnerable to Server-Side Request Forgery in ACME Chal - CVE-2026-3605
Vault KVv2 Metadata and Secret Deletion Policy Bypass Denial
Same weakness: CWE-770
- CVE-2026-42294
Argo Workflows: Unauthenticated Memory Exhaustion (DoS) in W - CVE-2026-42189
Russh: Pre-auth DoS via unbounded allocation in keyboard-int - CVE-2026-42793
Atom table exhaustion via attacker-controlled GraphQL SDL na - CVE-2026-44499
ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali
V. Comments for CVE-2025-6203
No comments yet