{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"0.4.2rc1"}],"component":"vyper","cve_ids":["CVE-2025-47285"],"ecosystem":"PyPI","epss":0.00464,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-qhr6-mgqr-mchm","id":"tcs_01M5KGX2S5C9SJ10Z94VCT0DR8","modified_at":"2026-07-07T17:47:20.266877349Z","published_at":"2026-07-07T16:02:52.484672Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2029","https://github.com/vyperlang/vyper/security/advisories/GHSA-qhr6-mgqr-mchm","https://nvd.nist.gov/vuln/detail/CVE-2025-47285","https://github.com/vyperlang/vyper/pull/4644","https://github.com/vyperlang/vyper","https://github.com/vyperlang/vyper/blob/68b68c4b30c5ef2f312b4674676170b8a6eaa316/vyper/builtins/functions.py#L560-L562","https://pypi.org/project/vyper","https://github.com/advisories/GHSA-qhr6-mgqr-mchm"],"severity":{"label":"low","score":2.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-2029","url":"https://osv.dev/vulnerability/PYSEC-2026-2029"},{"source":"nvd","source_id":"CVE-2025-47285","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47285"}],"summary":"Vyper's `concat()` builtin may elide side-effects for zero-length arguments"}