Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Succinct | Sp1 | >= 6.0.0, < 6.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/succinctlabs/sp1/releases/tag/v6.1.0Release Notes
- https://github.com/succinctlabs/sp1/security/advisories/GHSA-63x8-x938-vx33Vendor Advisory
FAQ
What is CVE-2026-40323?
CVE-2026-40323 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 rec...
How severe is CVE-2026-40323?
CVE-2026-40323 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40323?
Check the references section above for vendor advisories and patch information. Affected products include: Succinct Sp1.