Mmastodon TechnologyCybersecurity first seen 4 d ago, last 4 d ago, peak #3

High-severity memory corruption flaw flagged in Vyper compiler

Original: 🚨 EUVD-2021-34890 📊 Score: 8.3/10 (CVSS v3.1) 📦 Product: vyper 🏢 Vendor: vyperlang 📅 Updated: 2026-10-21 📝 Vyper from 0.

A high-severity vulnerability, EUVD-2021-34890, has been catalogued against the Vyper smart contract language maintained by Vyperlang. Versions from 0.1.0b4 to before 0.3.0 carry a memory corruption bug caused by an incorrect stack tip pointer during internal function calls. The flaw carries a CVSS v3.1 score of 8.3 and affects projects compiling Ethereum contracts with the language.

Why now: Security feeds are circulating the vulnerability notice, prompting developers building on Vyper to check whether their compiler versions are affected.

VyperVyperlangEthereum

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Evidence

• 🚨 EUVD-2021-34890 📊 Score: 8.3/10 (CVSS v3.1) 📦 Product: vyper 🏢 Vendor: vyperlang 📅 Updated: 2026-10-21 📝 Vyper from 0.1.0b4 before 0.3.0 contains a memory corruption vulnerability caused by an incorrect stack tip pointer when internal function calls are performed inside… · EUVD_Bot

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