Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-cpb5-3f58-5ueb
Vulnerability ID VCID-cpb5-3f58-5ueb
Aliases CVE-2023-42441
GHSA-3hg2-r75x-g69m
PYSEC-2023-305
Summary 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-667 Improper Locking
CWE-833 Deadlock
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 5.3 https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
cvssv3.1 5.3 https://github.com/vyperlang/vyper/pull/3605
cvssv3.1 5.3 https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
Reference id Reference type URL
https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yaml
https://github.com/vyperlang/vyper
https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
https://github.com/vyperlang/vyper/pull/3605
https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
CVE-2023-42441 https://nvd.nist.gov/vuln/detail/CVE-2023-42441
GHSA-3hg2-r75x-g69m https://github.com/advisories/GHSA-3hg2-r75x-g69m
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/vyperlang/vyper/pull/3605
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:19:35.428575+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/vyper/PYSEC-2023-305.yaml 38.6.0