CVE - CVE-2025-52884

CVE-ID
CVE-2025-52884	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
RISC Zero is a zero-knowledge verifiable general computing platform, with Ethereum integration. The risc0-ethereum repository contains Solidity verifier contracts, Steel EVM view call library, and supporting code. Prior to versions 2.1.1 and 2.2.0, the `Steel.validateCommitment` Solidity library function will return `true` for a crafted commitment with a digest value of zero. This violates the semantics of `validateCommitment`, as this does not commitment to a block that is in the current chain. Because the digest is zero, it does not correspond to any block and there exist no known openings. As a result, this commitment will never be produced by a correct zkVM guest using Steel and leveraging this bug to compromise the soundness of a program using Steel would require a separate bug or misuse of the Steel library, which is expected to be used to validate the root of state opening proofs. A fix has been released as part of `risc0-ethereum` 2.1.1 and 2.2.0. Users for the `Steel` Solidity library versions 2.1.0 or earlier should ensure they are using `Steel.validateCommitment` in tandem with zkVM proof verification of a Steel program, as shown in the ERC-20 counter example, and documentation. This is the correct usage of Steel, and users following this pattern are not at risk, and do not need to take action. Users not verifying a zkVM proof of a Steel program should update their application to do so, as this is incorrect usage of Steel.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://docs.beboundless.xyz/developers/steel/how-it-works#verifying-the-proof-onchain URL:https://docs.beboundless.xyz/developers/steel/how-it-works#verifying-the-proof-onchain MISC:https://github.com/risc0/risc0-ethereum/blob/ff0cb9253a87945b653b825711b8b5075f8b7545/examples/erc20-counter/contracts/src/Counter.sol#L56-L63 URL:https://github.com/risc0/risc0-ethereum/blob/ff0cb9253a87945b653b825711b8b5075f8b7545/examples/erc20-counter/contracts/src/Counter.sol#L56-L63 MISC:https://github.com/risc0/risc0-ethereum/commit/3bbac859c7132b21ba5fdf2d47f1dd52e7e73d98 URL:https://github.com/risc0/risc0-ethereum/commit/3bbac859c7132b21ba5fdf2d47f1dd52e7e73d98 MISC:https://github.com/risc0/risc0-ethereum/pull/605 URL:https://github.com/risc0/risc0-ethereum/pull/605 MISC:https://github.com/risc0/risc0-ethereum/releases/tag/v2.1.1 URL:https://github.com/risc0/risc0-ethereum/releases/tag/v2.1.1 MISC:https://github.com/risc0/risc0-ethereum/releases/tag/v2.2.0 URL:https://github.com/risc0/risc0-ethereum/releases/tag/v2.2.0 MISC:https://github.com/risc0/risc0-ethereum/security/advisories/GHSA-gjv3-89hh-9xq2 URL:https://github.com/risc0/risc0-ethereum/security/advisories/GHSA-gjv3-89hh-9xq2
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250620	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250620)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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