CVE-2026-34209

HIGH

7.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/31/2026

Ultima modificacao4/3/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

wevm:mppx

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.