{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"2.6.0"}],"component":"lightning","cve_ids":["CVE-2026-31221"],"ecosystem":"PyPI","epss":0.00385,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-75m9-98v2-hjpm","id":"tcs_01M5KH90NM16SP8TSAPF7WVJ2Z","modified_at":"2026-09-10T17:25:50.009044130Z","published_at":"2026-09-10T16:42:38.605243Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3972","https://nvd.nist.gov/vuln/detail/CVE-2026-31221","https://github.com/Lightning-AI/pytorch-lightning","https://www.notion.so/CVE-2026-31221-35d1e1393188815f8db7c4fd08076639","https://pypi.org/project/pytorch-lightning","https://github.com/advisories/GHSA-75m9-98v2-hjpm"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-3972","url":"https://osv.dev/vulnerability/PYSEC-2026-3972"}],"summary":"PyTorch Lightning load_from_checkpoint has an insecure checkpoint deserialization"}