CVE-2026-63628

Katalog CVE

CVSS 6.9 · Medium EPSS 0,38%

Kerentanan Improper Input Validation. Skor CVSS 4.0 6.9 (Medium) menurut github.com.

Deskripsi (NVD)

mppx is a TypeScript interface for machine payments protocol. Prior to 0.8.2, the fee-payer cosigning path in src/tempo/internal/fee-payer.ts copied a client-supplied access_list from a 0x78 FeePayerEnvelope without validating its length or contents. Because EIP-2930 access-list entries consume intrinsic gas even when the listed addresses are never used, a client could add fabricated address-only entries and cause the server fee_payer wallet to pay unnecessary transaction fees. The demonstrated 180-entry list remained within the 500,000 gas policy cap, 16 KB header limit, and RPC simulation budget while increasing the fee by approximately 9.4 times. This issue is fixed in version 0.8.2.

Rincian

Terbit di NVD

22 September 2026

Terakhir diubah

24 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.9 (Medium), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 30,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/wevm/mppx/commit/24ddcca719ae282977d8747309ed1275ea282b25
• https://github.com/wevm/mppx/pull/602
• https://github.com/wevm/mppx/releases/tag/mppx@0.8.2
• https://github.com/wevm/mppx/security/advisories/GHSA-vc9j-9wph-qghj