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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.

PUBLISHED Reserved 2026-04-10 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M




HIGH: 8.9CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

Problem types

CWE-345: Insufficient Verification of Data Authenticity

CWE-354: Improper Validation of Integrity Check Value

Product status

>= 6.0.0, < 6.1.0
affected

References

github.com/...bs/sp1/security/advisories/GHSA-63x8-x938-vx33

github.com/succinctlabs/sp1/releases/tag/v6.1.0

cve.org (CVE-2026-40323)

nvd.nist.gov (CVE-2026-40323)

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