{"action":"Upgrade openzeppelin-cairo-contracts to 0.6.1 or later.","affected":[{"fixed":"0.6.1","introduced":"0.2.0"}],"component":"openzeppelin-cairo-contracts","cve_ids":["CVE-2023-23940"],"ecosystem":"PyPI","epss":0.0022,"exploited":false,"fixed_versions":["0.6.1"],"ghsa_id":"GHSA-626q-v9j4-mcp4","id":"tcs_01M5KGKH36DE47N50VT99MXGDB","modified_at":"2026-02-22T22:49:15.001963Z","published_at":"2023-02-03T20:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2023-39","https://github.com/OpenZeppelin/cairo-contracts/pull/542/commits/6d4cb750478fca2fd916f73297632f899aca9299","https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-626q-v9j4-mcp4"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2023-39","url":"https://osv.dev/vulnerability/PYSEC-2023-39"}],"summary":"OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_ke"}