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Oct 23, 2026

Succinct patches SP1 zero-knowledge proving bug that exposed Prover Network

A high-severity soundness bug in Succinct's SP1 zero-knowledge proving system exposed the company's mainnet Prover Network to invalid proofs. The flaw affected native Rust verification in versions 6.0.0–6.8.0, though onchain verification was unaffected.

Oct 23, 2026·2 sources

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Top claims

▪On-chain Solidity verifiers for Groth16 and Plonk checks and applications whose proof aggregation ended in Groth16 or Plonk proofs were unaffected by SP1's high-severity soundness bug
▪Succinct advised users running native Rust verifiers in SP1 who accept proofs from untrusted provers to upgrade their software to version 6.8.1
▪A high-severity soundness bug in Succinct's SP1 zero-knowledge proving system exposed Succinct's mainnet Prover Network to invalid execution proofs from third-party provers

Topics

Blockchain security & risks Cryptography Crypto security Zero Knowledge Security & Exploits