Is CVE-2026-34210 actively exploited?

No active exploitation of CVE-2026-34210 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34210 be exploited remotely?

Yes. CVE-2026-34210 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34210?

CVE-2026-34210 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-34210

HIGH

CVE-2026-34210

CWE-697Published: March 31, 2026· Updated: Apr 3, 2026

8.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34210 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.