High 8.1Published Mar 31, 2026

CVE-2026-34210mppx is a TypeScript interface for machine payments protocol.

Updated under an hour ago (2026-10-19 13:40 UTC)

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It affects wevm mppx. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for wevm mppx

Exploited in the last 30 days

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: 8.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-697
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

wevm mppx wevm:mppx	before 0.4.11	NVD

References

https://github.com/wevm/mppx/commit/b2b1a0b60506fc71aa80b8a025084949dca1a994patch
https://github.com/wevm/mppx/releases/tag/mppx@0.4.11release-notes
https://github.com/wevm/mppx/security/advisories/GHSA-8mhj-rffc-rcvwpatch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.