{"action":"Upgrade deno to 2.8.1 or later.","affected":[{"fixed":"2.8.1","introduced":"0"}],"component":"deno","cve_ids":["CVE-2026-49859"],"ecosystem":"deno","exploited":false,"fixed_versions":["2.8.1"],"ghsa_id":"GHSA-cpgj-f7g3-2pp2","id":"tcs_01M5K4YT32MG1XZ4GXEA39ZPPV","modified_at":"2026-06-02T19:28:01Z","published_at":"2026-05-27T13:07:52Z","references":["https://github.com/denoland/deno/security/advisories/GHSA-cpgj-f7g3-2pp2","https://www.cve.org/CVERecord?id=CVE-2026-49859"],"severity":{"label":"medium","score":5.2},"sources":[{"source":"deno-runtime","source_id":"GHSA-cpgj-f7g3-2pp2","url":"https://github.com/denoland/deno/security/advisories/GHSA-cpgj-f7g3-2pp2"}],"summary":"`fetch()` API sandbox bypass via missing DNS resolution check"}