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.
References (3)
Core 3
Core References
Exploit, Patch, Vendor Advisory x_refsource_confirm
https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
Issue Tracking, Patch x_refsource_misc
https://github.com/vyperlang/vyper/pull/3605
Scores
CVSS v3
5.3
EPSS
0.0015
EPSS Percentile
35.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-667
CWE-833
Status
published
Products (2)
pypi/vyper
0.2.9 - 0.3.10PyPI
vyperlang/vyper
0.2.9 - 0.3.10
Published
Sep 18, 2023
Tracked Since
Feb 18, 2026