{"action":"Upgrade protobuf to 3.15.0 or later.","affected":[{"fixed":"3.15.0","introduced":"0"}],"component":"protobuf","cve_ids":["CVE-2021-22570"],"ecosystem":"PyPI","epss":0.0266,"exploited":false,"fixed_versions":["3.15.0"],"ghsa_id":"GHSA-77rm-9x9h-xj3g","id":"tcs_01M5KGHYWJ35YMFQTDXZHN3R3H","modified_at":"2026-01-28T03:41:23.240277Z","published_at":"2022-01-26T14:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2022-48","https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.0","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFX6KPNOFHYD6L4XES5PCM3QNSKZBOTQ/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3DVUZPALAQ34TQP6KFNLM4IZS6B32XSA/","https://github.com/advisories/GHSA-77rm-9x9h-xj3g"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2022-48","url":"https://osv.dev/vulnerability/PYSEC-2022-48"}],"summary":"Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file's name during generation of the resulting error me"}