{"action":"Upgrade hono to 4.12.21 or later.","affected":[{"fixed":"4.12.21","introduced":"0"}],"component":"hono","cve_ids":["CVE-2026-47675"],"ecosystem":"npm","epss":0.00216,"exploited":false,"fixed_versions":["4.12.21"],"ghsa_id":"GHSA-3hrh-pfw6-9m5x","id":"tcs_01M5KEXFK0QZ2CJH99CK4DNPPP","modified_at":"2026-09-10T03:50:55.293982711Z","published_at":"2026-06-04T17:59:25Z","references":["https://osv.dev/vulnerability/GHSA-3hrh-pfw6-9m5x","https://github.com/honojs/hono/security/advisories/GHSA-3hrh-pfw6-9m5x","https://nvd.nist.gov/vuln/detail/CVE-2026-47675","https://github.com/honojs/hono/commit/905aedbc20661e0e2fa378783a7ec44a5c3df43d","https://github.com/honojs/hono","https://github.com/honojs/hono/releases/tag/v4.12.21"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-3hrh-pfw6-9m5x","url":"https://osv.dev/vulnerability/GHSA-3hrh-pfw6-9m5x"}],"summary":"Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection"}