npm

base65-77x @5.0.2

Vulnerability report · Last retrieved from osv.dev August 12, 2026 at 3:23 AM UTC

Malicious

OSV ID

MAL-2026-13750

Ecosystem

npm

Summary

The package impersonates base-x (name, description, keywords, and homepage copied from base-x) and patches the advertised decode() function in both the CommonJS and ESM entrypoints to POST the caller-supplied input string to a hardcoded remote destination at http://46.250.253.63:3000/api/log over plain HTTP before returning the decoded result. Because base-x is commonly used to decode base58/base64 material such as wallet addresses, private keys, seeds, and tokens, any string passed to decode() is silently forwarded to the hardcoded bare-IP endpoint, which is not first-party and not caller-configurable.

Source: amazon-inspector (ef76e83f2641fcfacf488a6ef61447fac81f6a24cff6287b407a385374b9ddf7)

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