{"id":"GHSA-x5rw-q4pp-hg5g","summary":"devalue: stringifyAsync can cause an unhandled rejection despite a caught returned promise","details":"When serializing multiple promises, a later promise can reject before an earlier one settles. An internal rejected promise remains unhandled even if the caller catches the returned `stringifyAsync` promise. Under Node's default unhandled-rejection behavior this can terminate the process. Applications whose asynchronous failures/timing can be influenced by requests are potentially exposed.\n\nThis is essentially impossible to exploit, and is much more likely to surface as a developer-introduced bug.","modified":"2026-10-01T15:30:10.729813749Z","published":"2026-10-01T15:15:13Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-10-01T15:15:13Z","nvd_published_at":null,"cwe_ids":["CWE-248","CWE-755"]},"references":[{"type":"WEB","url":"https://github.com/sveltejs/devalue/security/advisories/GHSA-x5rw-q4pp-hg5g"},{"type":"WEB","url":"https://github.com/sveltejs/devalue/commit/dae8153e9d7541b975cc4018138d6cebec6c1199"},{"type":"PACKAGE","url":"https://github.com/sveltejs/devalue"},{"type":"WEB","url":"https://github.com/sveltejs/devalue/releases/tag/v5.9.3"}],"affected":[{"package":{"name":"devalue","ecosystem":"npm","purl":"pkg:npm/devalue"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.8.0"},{"fixed":"5.9.3"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 5.9.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-x5rw-q4pp-hg5g/GHSA-x5rw-q4pp-hg5g.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}