Description

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.

INFO

Published Date :

2026-03-31T14:10:46.416Z

Last Modified :

2026-04-02T15:13:32.047Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34209 vulnerability.

Vendors Products
Wevm
  • Mppx
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34209.

URL Resource
https://github.com/wevm/mppx/commit/94088246ee18f21b5d6be40d9e7a464f5a280bfb cve-icon cve-icon
https://github.com/wevm/mppx/releases/tag/[email protected] cve-icon cve-icon
https://github.com/wevm/mppx/security/advisories/GHSA-mv9j-8jvg-j8mr cve-icon cve-icon
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