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.
History

Mon, 20 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Monetr
Monetr monetr
Vendors & Products Monetr
Monetr monetr

Mon, 20 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 17 Apr 2026 23:00:00 +0000

Type Values Removed Values Added
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.
Title monetr: Unauthenticated Stripe webhook reads attacker-sized request bodies before signature validation
Weaknesses CWE-400
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-17T22:54:57.545Z

Updated: 2026-04-20T13:36:05.862Z

Reserved: 2026-04-13T19:50:42.114Z

Link: CVE-2026-40481

cve-icon Vulnrichment

Updated: 2026-04-20T13:32:35.321Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-17T23:16:12.457

Modified: 2026-04-20T19:03:07.607

Link: CVE-2026-40481

cve-icon Redhat

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