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EUVD-2026-246390

fkie_cve-2025-53359

ethereum is a common ethereum structs for Rust. Prior to ethereum crate v0.18.0, signature malleability (according to EIP-2) was only checked for "legacy" transactions, but not for EIP-2930, EIP-1559 and EIP-7702 transactions. This is a specification deviation. The signature malleability itself is not a security issue and not as high of a risk if the ethereum crate is used on a single-implementation blockchain. This issue has been patched in version v0.18.0. A workaround for this issue involves manually checking transaction malleability outside of the crate, however upgrading is recommended.

GHSA-3w94-vq2x-v5wr — ethereum does not check transaction malleability for EIP-2930, EIP-1559 and EIP-7702 transactions

Affected: crates.io: ethereum

### Impact

Prior to `ethereum` crate v0.18.0, signature malleability (according to EIP-2) was only checked for "legacy" transactions, but not for EIP-2930, EIP-1559 and EIP-7702 transactions.

This is a specification deviation and therefore a high severity advisory if the `ethereum` crate is used for Ethereum mainnet. Note that signature malleability itself is not a security issue, and therefore if the `ethereum` crate is used on a single-implementation blockchain, it's a low/informational severity advisory.

### Patches

The issue is fixed in `ethereum` v0.18.0

### Workarounds

You can also manually check transaction malleability outside of the crate. But it's recommended to simply upgrade the version.

### References

See PR: https://github.com/rust-ethereum/ethereum/pull/67