CVE-2026-34210

MEDIUM EPSS 38.7%
Published Mar 31, 20263mo ago · Modified Jun 17, 20262w ago
6.0 CVSS 4.0
Medium
Find Similar
Published Mar 31, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
6.0
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
38.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-697

Affected Products 1

VendorProductVersionRange
wevmmppx* <0.4.11

References 3

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

Remediation

  • github.com https://github.com/wevm/mppx/commit/b2b1a0b60506fc71aa80b8a025084949dca1a994
    Patch
  • github.com https://github.com/wevm/mppx/security/advisories/GHSA-8mhj-rffc-rcvw
    PatchVendor Advisory