Advisories for Npm/@Ensdomains/Ens-Contracts package

The RSASHA256Algorithm and RSASHA1Algorithm contracts fail to validate PKCS#1 v1.5 padding structure when verifying RSA signatures. The contracts only check if the last 32 (or 20) bytes of the decrypted signature match the expected hash. This enables Bleichenbacher's 2006 signature forgery attack against DNS zones using RSA keys with low public exponents (e=3). Two ENS-supported TLDs (.cc and .name) use e=3 for their Key Signing Keys, allowing any domain under …

On November 24th 2025, a new supply chain attack called Shai-Hulud 2.0 was launched. This package contains the malicious code that attempts to harvest credentials and infect GitHub and npm repositories. The malicious software executes during the pre-install phase and attempts to harvest credentials from popular online services. It is recommended all credentials be rotated, npm cache is cleared, .node_modules directory is removed and all dependencies be rolled back to …

Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. According to the documentation, controllers are allowed to register new domains and extend the expiry of existing domains, but they cannot change the ownership or reduce the expiration time of existing domains. However, a preliminary analysis suggests that an attacker-controlled controller may be able to reduce the expiration time of existing domains due …