CVE-2026-34210

mppx is a TypeScript interface for machine payments protocol. Prior to version 0.4.11, the stripe/charge payment method did not check Stripe's Idempotent-Replayed response header when creating PaymentIntents. An attacker could replay a valid credential containing the same spt token against a new challenge, and the server would accept the replayed Stripe PaymentIntent as a new successful payment without actually charging the customer again. This allowed an attacker to pay once and consume unlimited resources by replaying the credential. This issue has been patched in version 0.4.11.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/wevm/mppx/commit/b2b1a0b60506fc71aa80b8a025084949dca1a994	Patch
https://github.com/wevm/mppx/releases/tag/mppx@0.4.11	Release Notes
https://github.com/wevm/mppx/security/advisories/GHSA-8mhj-rffc-rcvw	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wevm:mppx:*:*:*:*:*:node.js:*:*

History

03 Apr 2026, 16:17

Type	Values Removed	Values Added
First Time		Wevm Wevm mppx
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1
References	~~() https://github.com/wevm/mppx/commit/b2b1a0b60506fc71aa80b8a025084949dca1a994 -~~	() https://github.com/wevm/mppx/commit/b2b1a0b60506fc71aa80b8a025084949dca1a994 - Patch
References	~~() https://github.com/wevm/mppx/releases/tag/mppx@0.4.11 -~~	() https://github.com/wevm/mppx/releases/tag/mppx@0.4.11 - Release Notes
References	~~() https://github.com/wevm/mppx/security/advisories/GHSA-8mhj-rffc-rcvw -~~	() https://github.com/wevm/mppx/security/advisories/GHSA-8mhj-rffc-rcvw - Patch, Vendor Advisory
CPE		cpe:2.3:a:wevm:mppx::::::node.js::*

31 Mar 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-31 15:16

Updated : 2026-04-03 16:17

NVD link : CVE-2026-34210

Mitre link : CVE-2026-34210

CVE.ORG link : CVE-2026-34210

JSON object : View

Products Affected

wevm

mppx

CWE

CWE-697

Incorrect Comparison

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