What is CVE-2026-40481?

CVE-2026-40481 is a high-severity vulnerability in Monetr, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-17.

How severe is CVE-2026-40481?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Monetr

CVE-2026-40481

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.004 (36.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Monetr — versions < 1.12.4

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Product, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-40481?: CVE-2026-40481 is a high-severity vulnerability in Monetr, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-17.
How severe is CVE-2026-40481?: High severity. CVSS v3 base score is 7.5 out of 10.