CVE-2026-34209

HIGH

7.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/31/2026

Ultima modificacion4/3/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

wevm:mppx

Debilidades (CWE)

CWE-294

Referencias

https://github.com/wevm/mppx/commit/94088246ee18f21b5d6be40d9e7a464f5a280bfb(security-advisories@github.com)

https://github.com/wevm/mppx/releases/tag/mppx@0.4.11(security-advisories@github.com)

https://github.com/wevm/mppx/security/advisories/GHSA-mv9j-8jvg-j8mr(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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