Medium severity5.3NVD Advisory· Published Sep 18, 2023· Updated Jun 17, 2026
CVE-2023-42441
CVE-2023-42441
Description
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). Starting in version 0.2.9 and prior to version 0.3.10, locks of the type @nonreentrant("") or @nonreentrant('') do not produce reentrancy checks at runtime. This issue is fixed in version 0.3.10. As a workaround, ensure the lock name is a non-empty string.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
vyperPyPI | >= 0.2.9, < 0.3.10 | 0.3.10 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83nvdPatchWEB
- github.com/vyperlang/vyper/pull/3605nvdIssue TrackingPatchWEB
- github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69mnvdExploitPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-3hg2-r75x-g69mghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-42441ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yamlghsaWEB
News mentions
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