CVE-2023-30543 - CVE House
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Status published Medium CVE-2023-30543

`chainId` may be outdated if user changes chains as part of connection in @web3-react

Vulnerability Description

@web3-react is a framework for building Ethereum Apps . In affected versions the `chainId` may be outdated if the user changes chains as part of the connection flow.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 issue has been addressed in PR #749 and is available in updated npm artifacts. There are no known workarounds for this issue. Users are advised to upgrade.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

web3-react
Vulnerable Versions:
@web3-react/coinbase-wallet: >= 6, < 8.0.35-beta.0, @web3-react/eip1193: >= 6, < 8.0.27-beta.0, @web3-react/metamask: >= 6, < 8.0.30-beta.0, @web3-react/walletconnect: >= 6, < 8.0.37-beta.0

Timeline

Official Publish: April 17th, 2023
Last Modified: February 5th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

Weaknesses (CWE)