{"action":"Upgrade vyper to 0.3.10 or later.","affected":[{"fixed":"0.3.10","introduced":"0.2.9"}],"component":"vyper","cve_ids":["CVE-2023-42441"],"ecosystem":"PyPI","epss":0.00514,"exploited":false,"fixed_versions":["0.3.10"],"ghsa_id":"GHSA-3hg2-r75x-g69m","id":"tcs_01M5KEVWZV0BJDPW67HRYY045Q","modified_at":"2026-09-10T03:50:03.191650148Z","published_at":"2023-09-18T19:20:55Z","references":["https://osv.dev/vulnerability/GHSA-3hg2-r75x-g69m","https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m","https://nvd.nist.gov/vuln/detail/CVE-2023-42441","https://github.com/vyperlang/vyper/pull/3605","https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83","https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yaml","https://github.com/vyperlang/vyper"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-3hg2-r75x-g69m","url":"https://osv.dev/vulnerability/GHSA-3hg2-r75x-g69m"}],"summary":"Vyper has incorrect re-entrancy lock when key is empty string"}