[ CVE-2021-48018 · Published 21 Oct 2026 ]
Vulnerability in vyperlang vyper
CVSS 7.4
EPSS <1%No fix listed yet
[ Description ]Official description
Vyper from 0.2.13 before 0.2.15 allocates storage slots for @nonreentrant reentrancy locks at the same locations as contract storage variables. When a function using @nonreentrant is called, setting the lock overwrites the overlapping storage variable, corrupting contract state and breaking the contract's intended logic.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.