{"id":"CVE-2026-21712","details":"A flaw in Node.js URL processing causes an assertion failure in native code when `url.format()` is called with a malformed internationalized domain name (IDN) containing invalid characters, crashing the Node.js process.","aliases":["BIT-node-2026-21712","BIT-node-min-2026-21712"],"modified":"2026-08-21T03:46:34.918763942Z","published":"2026-03-30T15:13:59.172Z","related":["ALSA-2026:7350","ALSA-2026:7670","ALSA-2026:7675","SUSE-SU-2026:1299-1","SUSE-SU-2026:21181-1","openSUSE-SU-2026:10504-1","openSUSE-SU-2026:11110-1","openSUSE-SU-2026:20519-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21712.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"24.14.0"},{"last_affected":"24.14.0"},{"introduced":"25.8.1"},{"last_affected":"25.8.1"}]}],"cna_assigner":"hackerone"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/3546390"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21712.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21712"},{"type":"ARTICLE","url":"https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nodejs/node","events":[{"introduced":"c5349f43cd66d2aa02d86414c9ed426f71d3ae48"},{"last_affected":"f657bb8ed86365ff3fdbe32e27563e778b41486a"},{"introduced":"0b3a10d4c8ba5e15429287e725d22615be896e95"},{"last_affected":"2ea7a7b67c3d698a0e80d2591365e2dc5c5f7a81"}],"database_specific":{"extracted_events":[{"introduced":"24.0.0"},{"last_affected":"24.14.0"},{"introduced":"25.0.0"},{"last_affected":"25.8.1"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*"}}],"versions":["v25.8.1","v25.8.0","v25.7.0","v24.14.0","v25.6.1","v24.13.1","v25.6.0","v25.5.0","v25.4.0","v24.13.0","v25.3.0","v24.12.0","v25.2.1","v25.2.0","v24.11.1","v25.1.0","v24.11.0","v25.0.0","v24.10.0","v24.9.0","v24.8.0","v24.7.0","v24.6.0","v24.5.0","v24.4.1","v24.4.0","v24.3.0","v24.2.0","v24.1.0","v24.0.2","v24.0.1","v24.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21712.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"}]}