{"action":"Upgrade agents to 0.3.10 or later.","affected":[{"fixed":"0.3.10","introduced":"0"}],"component":"agents","cve_ids":["CVE-2026-1721"],"ecosystem":"npm","epss":0.00417,"exploited":false,"fixed_versions":["0.3.10"],"ghsa_id":"GHSA-cvhv-6xm6-c3v4","id":"tcs_01M5KFKP59VQEC0JE9SGXEWY3X","modified_at":"2026-02-13T20:56:19.536054Z","published_at":"2026-02-13T03:31:23Z","references":["https://osv.dev/vulnerability/GHSA-cvhv-6xm6-c3v4","https://nvd.nist.gov/vuln/detail/CVE-2026-1721","https://github.com/cloudflare/agents/pull/841","https://github.com/cloudflare/agents/commit/3f490d045844e4884db741afbb66ca1fe65d4093","https://github.com/cloudflare/agents"],"severity":{"label":"medium","score":6.2},"sources":[{"source":"osv","source_id":"GHSA-cvhv-6xm6-c3v4","url":"https://osv.dev/vulnerability/GHSA-cvhv-6xm6-c3v4"},{"source":"nvd","source_id":"CVE-2026-1721","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1721"}],"summary":"Cloudflare Agents is Vulnerable to Reflected Cross-Site Scripting in the AI Playground's OAuth callback handler"}