PT-2024-24741 · Vyper · Vyper

Charles-Cooper · Published 2024-04-25 · Updated 2026-03-12 · CVE-2024-32648

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Vyper versions prior to 0.3.0

Description The issue concerns the default () function not respecting the @nonreentrancy decorator, and the lock not being emitted. This is a known bug with low impact, as using a lock on a default function is a sparsely used pattern. No vulnerable production contracts were found.

Recommendations For versions prior to 0.3.0, update to version 0.3.0 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the @nonreentrancy decorator on default () functions until a patch is applied.

Exploit

Fix

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

CVE-2024-32648

GHSA-M2V9-W374-5HJ9

PYSEC-2024-163

Affected Products

Vyper

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32648.json · Exploit
• https://github.com/vyperlang/vyper/security/advisories/GHSA-m2v9-w374-5hj9 · Vendor Advisory
• https://github.com/vyperlang/vyper/commit/93287e5ac184b53b395c907d40701f721daf8177 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-32648 · Security Note
• https://osv.dev/vulnerability/CVE-2024-32648 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-m2v9-w374-5hj9 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2024-163 · Vendor Advisory
• https://github.com/vyperlang/vyper/issues/2455 · Note
• https://github.com/vyperlang/vyper · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2024-163.yaml · Note
• https://twitter.com/dailycve/status/2032238674880917966 · Twitter Post