PT-2026-28607 · Mppx · Mppx

Samczsun + 1 · Publicado 2026-03-29 · Atualizado 2026-03-31 · CVE-2026-34209

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions mppx versions prior to 0.4.11

Description mppx is a TypeScript interface for machine payments protocol. The tempo/session cooperative close handler incorrectly validated the close voucher amount using '<' instead of '<=' against the on-chain settled amount. This allowed an attacker to submit a close voucher equal to the settled amount, bypassing fund commitment and potentially closing or disrupting the channel. The vulnerable component is the tempo/session cooperative close handler.

Recommendations Update to version 0.4.11 or later.

Exploit

Correção

Enumeração de Fraquezas

CWE-294

Identificadores relacionados

CVE-2026-34209

GHSA-MV9J-8JVG-J8MR

Produtos afetados

Mppx

Referências · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34209.json · Exploit
• https://github.com/wevm/mppx · Nota
• https://github.com/wevm/mppx/security/advisories/GHSA-mv9j-8jvg-j8mr · Aviso do Fabricante
• https://github.com/wevm/mppx/commit/94088246ee18f21b5d6be40d9e7a464f5a280bfb · Correção
• https://github.com/wevm/mppx/releases/tag/mppx@0.4.11 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-34209 · Nota de Segurança
• https://twitter.com/CVEnew/status/2039004436324815038 · Publicação no Twitter
• https://osv.dev/vulnerability/GHSA-mv9j-8jvg-j8mr · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2026-34209 · Aviso do Fabricante