CVE-2026-40481
LowVulnerability 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.
Severity Details
Weakness Type (CWE)
Uncontrolled Resource Consumption
- Description
- The product does not properly control the allocation and maintenance of a limited resource.
- Exploit Likelihood
- High
- Typical Severity
- High
- Abstraction Level
- Class
Key Information
- Published Date
- April 17, 2026
