{"schema_version":"1.9.0","id":"GHSA-hgv7-v322-mmgr","published":"2026-05-21T17:59:05Z","modified":"2026-09-10T03:50:47.097574562Z","aliases":["CVE-2026-82258"],"summary":"@sveltejs/kit: `query.batch` cross-talk","details":"`query.batch()` could, under very rare and specific timings, cause concurrent requests from different users to merge and resolve under single request context, enabling cross-user data disclosure.","affected":[{"package":{"name":"@sveltejs/kit","ecosystem":"npm","purl":"pkg:npm/%40sveltejs/kit"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.38.0"},{"fixed":"2.60.1"}]}],"database_specific":{"last_known_affected_version_range":"<= 2.60.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-hgv7-v322-mmgr/GHSA-hgv7-v322-mmgr.json"}}],"references":[{"type":"WEB","url":"https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgr"},{"type":"WEB","url":"https://github.com/sveltejs/kit/commit/dadaefc2e647a0a62f49f3ee8bc7aa46f5e27056"},{"type":"PACKAGE","url":"https://github.com/sveltejs/kit"}],"database_specific":{"cwe_ids":["CWE-200"],"github_reviewed":true,"github_reviewed_at":"2026-05-21T17:59:05Z","nvd_published_at":null,"severity":"MODERATE"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}