CVE-2026-40323
SP1 V6 Recursion Circuit Row-Count Binding Gap
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-345 CWE-354 |
| Vendor | succinctlabs |
| Product | sp1 |
| Published | Apr 17, 2026 |
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Affected Versions
succinctlabs / sp1
>= 6.0.0, < 6.1.0