High severity7.5NVD Advisory· Published Apr 18, 2026· Updated May 13, 2026
CVE-2026-40323
CVE-2026-40323
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
sp1_sdkcrates.io | >= 6.0.0, < 6.1.0 | 6.1.0 |
sp1_recursion_circuitcrates.io | >= 6.0.0, < 6.1.0 | 6.1.0 |
sp1_provercrates.io | >= 6.0.0, < 6.1.0 | 6.1.0 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/advisories/GHSA-63x8-x938-vx33ghsaADVISORY
- github.com/succinctlabs/sp1/security/advisories/GHSA-63x8-x938-vx33nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-40323ghsaADVISORY
- github.com/succinctlabs/sp1/releases/tag/v6.1.0nvdRelease NotesWEB
News mentions
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