CVE-2023-30543

Impact

### Impact `chainId` may be outdated if the user changes chains as part of the connection flow. This means that the value of `chainId` returned by `useWeb3React()` may be incorrect. In an application, this means that any data derived from `chainId` could be incorrect. For example, if a swapping application derives a wrapped token contract address from the `chainId` *and* a user has changed chains as part of their connection flow the application could cause the user to send funds to the incorrect address when wrapping. This is a common approach when using other foundational libraries like [`ethers`](https://github.com/ethers-io/ethers.js), and most users of v8 will want to upgrade past the affected versions. ### Patches Patched in https://github.com/Uniswap/web3-react/pull/749. Users of web3-react@8.0.x-beta.0 should upgrade to at least: - @web3-react/coinbase-wallet@^8.0.35-beta.0 - @web3-react/eip1193@^8.0.27-beta.0 - @web3-react/metamask@^8.0.30-beta.0 - @web3-react/walletconnect@^8.0.37-beta.0 ### Workarounds N/A ### References N/A

Affected packages

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• GitHub advisory
• https://github.com/Uniswap/web3-react/pull/749
• https://github.com/Uniswap/web3-react/security/advisories/GHSA-8pf3-6fgr-3g3g
• https://github.com/advisories/GHSA-8pf3-6fgr-3g3g
• https://nvd.nist.gov/vuln/detail/CVE-2023-30543