{"id":"CLEANSTART-2026-NT71796","summary":"undici's BalancedPool constructor passes its entire options object through an internal deep-clone that serializes and reparses the value as JSON","details":"Security vulnerability affects the langfuse package. undici's BalancedPool constructor passes its entire options object through an internal deep-clone that serializes and reparses the value as JSON.","modified":"2026-09-29T01:00:18.990764922Z","published":"2026-09-29T00:39:58.211799Z","upstream":["CVE-2026-84961"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-NT71796.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-84961"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84961"}],"affected":[{"package":{"name":"langfuse","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.225.9-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-NT71796.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}