VULNERABILITY INTELLIGENCE

CVE-2026-40323

CVSS score8.9 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-04-18
Last modified2026-10-26
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/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

Description

SP1 is a zero‑knowledge virtual machine that proves the correct execution of programs compiled for the RISC-V architecture. In versions 6.0.0 through 6.0.2, a soundness vulnerability in the SP1 V6 recursive shard verifier allows a malicious prover to construct a recursive proof from a shard proof that the native verifier would reject. Version 6.1.0 fixes the issue.

Weakness classification

  • CWE-345: Insufficient Verification of Data Authenticity
  • CWE-354: Improper Validation of Integrity Check Value

Primary references