CVE-2026-34209 in mppx

Resumen (Inglés)

mppx is a TypeScript interface for machine payments protocol. Prior to version 0.4.11, the tempo/session cooperative close handler validated the close voucher amount using "<" instead of "<=" against the on-chain settled amount. An attacker could submit a close voucher exactly equal to the settled amount, which would be accepted without committing any new funds, effectively closing or griefing the channel for free. This issue has been patched in version 0.4.11.

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Responsable

GitHub_M

Reservar

2026-03-26

Divulgación

2026-03-31

Estado

Confirmado

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
354397	wevm mppx autenticación débil	294	No está definido	Arreglo oficial	CVE-2026-34209

Fuentes

• MITRE
• NVD
• CVE Details