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Vishal Singh

Blockchain Cryptography Security Researcher

Security assessments

The following reflects my security research in smart contract, blockchain infrastructure, zero-knowledge proof and advanced cryptography for MPC, FHE, and Post-Quantum systems

🔓 Vulnerabilities Disclosure (Public Cryptographic Findings)

Project Date Findings description
leanEthereum / leanSig Feb 2026 1 High — Lack of completeness in signature scheme or proof verification logic.
leanEthereum / leanMultisig (zkVM) Feb/March 2026 1 High, 2 Medium — Transcript Collisions from Zero-Padded Scalar Absorption (H-4) in Fiat-Shamir backend.
[redacted] (zkVM) Jan 2026 1 Critical — Soundness impact identified in core proof verification logic.
[redacted] (FHE) Jan 2026 1 High, 2 Medium — Ciphertext rotation flaw; predictable on-chain randomness. (Restricted Disclosure)
GOATNetwork Jan 2026 1 High — Incorrect slash fraction check allowing negative slashing, validator inflation, and token siphoning.


🛡️ Public Audit Portfolio (Competitive Contests)

Project Date Findings
Citrea Aug 2025 11
Geneius Contracts Jul 2025 6th RankDoS in Solana via order_hash collision
Genius Foundation (Infrastructure) Jul 2025 4
Succinct (Infrastructure) Jul 2025 1
Sorella Angstrom (Patrol) Jun 2025 4th RankFees stolen by changing initialized ticks
Telcoin Network (Infrastructure) Jun 2025 2
Nitro Labs / Solaxy (Infrastructure) Jun 2025 8th RankStale owner index ghost programs
Space and Time (Infrastructure) May 2025 2
Alchemix v3 May 2025 1
DefiApp Feb 2025 1
FarcasterAttestation Jan 2025 16th RankLack of ERC-165 compliance leads to failures
Daao Jan 2025 6
Aave v3.3 Jan 2025 -
Chorus One Jan 2025 6
StakeUp Oct 2024 1
InfinityPools (AMM) Oct 2024 1 High
Symbiotic Sep 2024 1
Decent - 0ft4626 (Cross Chain) Sep 2024 -
ZeroLend One (Lending) Aug 2024 1 High, 1 Medium
Winnables Raffles (NFT) Aug 2024 1
Tadle Aug 2024 1
LoopFi (Lending) Jul 2024 1
Napier Jun 2024 9th RankLoss of funds due to not collecting fees
RadicalxChange Mar 2024 3rd Rank imageHighest bidder can withdraw collateral
Napier Feb 2024 1 Medium
Solayer (Infrastructure) 2025 -
Clementine (Infrastructure) 2025 -


📁 Private Technical Reviews (Confidential Infrastructure)

Project Date Findings
ZK-Infrastructure Component (Rust/ZK) Nov 2025 Private (1H, 3M, 6L)
Privacy-focused Dark Pool AMM (Solidity) Oct 2025 Private (5H, 5M, 27L)
Infrastructure Verifier (Rust/ZK) Oct 2025 Private (1C, 2H, 3M, 11L)
Payment Protocol Core (Solidity) Oct 2025 Private (1M, 9L)
Rust Cryptography Libraries (BLS/others) Sep 2025 Private (2M, 7L/I)
Privacy-preserving Payment System (Solana) Sep 2025 Private
Infrastructure ZK Verifier (Rust) Jun 2025 Private
L1/L2 Infrastructure Review (ZK/Rust) May 2025 Private
Core ZK-Infrastructure Audit (Rust) Apr 2025 Private


Public Profiles


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