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CVE-2025-26622

sqrt doesn't define rounding behavior in Vyper PUBLISHED

Description (CNA)

vyper is a Pythonic Smart Contract Language for the EVM. Vyper `sqrt()` builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed and a fix is expected in version 0.4.1. Users are advised to upgrade as soon as the patched release is available. There are no known workarounds for this vulnerability.

Affected (CNA)

Vendor / productVersions
vyperlang / vyperaffected < 0.4.1

CWE

CWE-682

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.