CVE-2026-40481— monetr: Unauthenticated Stripe webhook reads attacker-sized request bodies before signature validation
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I. Basic Information for CVE-2026-40481
Vulnerability Information
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Vulnerability Title
monetr: Unauthenticated Stripe webhook reads attacker-sized request bodies before signature validation
Source: NVD (National Vulnerability Database)
Vulnerability Description
monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker can send oversized POST payloads to cause uncontrolled memory growth, leading to denial of service. The issue affects deployments with Stripe webhooks enabled and is mitigated if an upstream proxy enforces a request body size limit. This issue has been fixed in version 1.12.4.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
monetr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
monetr是monetr开源的一个个人预算管理应用。 monetr 1.12.3及之前版本存在安全漏洞，该漏洞源于Stripe webhook端点将整个请求体缓冲到内存中，可能导致拒绝服务攻击。
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
II. Public POCs for CVE-2026-40481
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IV. Related Vulnerabilities
Same weakness: CWE-400
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V. Comments for CVE-2026-40481
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