{"action":"Upgrade vyper to 0.4.1 or later.","affected":[{"fixed":"0.4.1","introduced":"0"}],"component":"vyper","cve_ids":["CVE-2025-27104"],"ecosystem":"PyPI","epss":0.00447,"exploited":false,"fixed_versions":["0.4.1"],"ghsa_id":"GHSA-h33q-mhmp-8p67","id":"tcs_01M5KGPJR4DFZZC4TNER0H6KVF","modified_at":"2025-04-09T17:59:22.089780Z","published_at":"2025-02-21T22:15:13Z","references":["https://osv.dev/vulnerability/PYSEC-2025-30","https://github.com/vyperlang/vyper/security/advisories/GHSA-h33q-mhmp-8p67","https://github.com/vyperlang/vyper/pull/4488"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2025-30","url":"https://osv.dev/vulnerability/PYSEC-2025-30"},{"source":"nvd","source_id":"CVE-2025-27104","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27104"}],"summary":"vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multi"}