Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vyperlang | Vyper | < 0.4.1 |
Related Weaknesses (CWE)
References
- https://github.com/vyperlang/vyper/pull/4486Issue TrackingPatch
- https://github.com/vyperlang/vyper/security/advisories/GHSA-2p94-8669-xg86Vendor Advisory
FAQ
What is CVE-2025-26622?
CVE-2025-26622 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 fi...
How severe is CVE-2025-26622?
CVE-2025-26622 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-26622?
Check the references section above for vendor advisories and patch information. Affected products include: Vyperlang Vyper.