{"action":"Upgrade @anthropic-ai/claude-code to 2.1.163 or later.","affected":[{"fixed":"2.1.163","introduced":"0.2.54"}],"component":"@anthropic-ai/claude-code","cve_ids":["CVE-2026-54316"],"ecosystem":"npm","epss":0.0052,"exploited":false,"fixed_versions":["2.1.163"],"ghsa_id":"GHSA-fg94-h982-f3mm","id":"tcs_01M5KFNF5WJ8WVD54DNT795W69","modified_at":"2026-07-20T21:15:27.462388438Z","published_at":"2026-06-17T18:06:06Z","references":["https://osv.dev/vulnerability/GHSA-fg94-h982-f3mm","https://github.com/anthropics/claude-code/security/advisories/GHSA-fg94-h982-f3mm","https://nvd.nist.gov/vuln/detail/CVE-2026-54316","https://github.com/anthropics/claude-code"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-fg94-h982-f3mm","url":"https://osv.dev/vulnerability/GHSA-fg94-h982-f3mm"}],"summary":"Claude Code: Out-of-Band Data Exfiltration via Pre-Approved HuggingFace Domain in WebFetch"}