uniswap-sdk-v4 (npm) · Malicious Code
Affects uniswap-sdk-v4Source GCVE Database
Malicious package : remove uniswap-sdk-v4 and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 17:39 UTC
Malicious package
Published to npm · OSV MAL-2026-12490
What to do
Remove uniswap-sdk-v4 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmuniswap-sdk-v4 | Affected
| Fixed in– |
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Description
The npm package 'uniswap-sdk-v4' version 1.0.0 is a malicious typosquat of the legitimate Uniswap SDK. It contains code that captures the private key supplied to its WalletClient constructor and sends it to a hardcoded third-party webhook, resulting in full wallet compromise upon instantiation. The destination webhook URL is fixed and not configurable by the user.