{"action":"Upgrade undici to 7.29.1 or later.","affected":[{"fixed":"7.29.1","introduced":"7.0.0"},{"fixed":"8.10.2","introduced":"8.0.0"}],"component":"undici","cve_ids":["CVE-2026-84933"],"ecosystem":"npm","epss":0.00303,"exploited":false,"fixed_versions":["7.29.1","8.10.2"],"ghsa_id":"GHSA-2jfj-6hjv-fm6j","id":"tcs_01M5KETCZVFD82VGCRCH8XQ1E6","modified_at":"2026-09-29T18:30:41.174435110Z","published_at":"2026-09-29T18:19:58Z","references":["https://osv.dev/vulnerability/GHSA-2jfj-6hjv-fm6j","https://github.com/nodejs/undici/security/advisories/GHSA-2jfj-6hjv-fm6j","https://nvd.nist.gov/vuln/detail/CVE-2026-84933","https://github.com/nodejs/undici/commit/b6c5a00252c37da9dd2db9bead053bb843e1f988","https://github.com/nodejs/undici/commit/cb75bbb34224a968b4ad80cab8b7aba5e0b3b28a","https://cna.openjsf.org/security-advisories.html","https://github.com/nodejs/undici","https://github.com/nodejs/undici/releases/tag/v7.29.1","https://github.com/nodejs/undici/releases/tag/v8.10.2"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-2jfj-6hjv-fm6j","url":"https://osv.dev/vulnerability/GHSA-2jfj-6hjv-fm6j"}],"summary":"undici vulnerable to cross-user cookie disclosure via Set-Cookie caching in shared caches"}