CVE Explorer
CVE-2026-21712
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"node","vendor":"nodejs","versions":[{"lessThanOrEqual":"24.14.0","status":"affected","version":"24.14.0","versionType":"semver"},{"lessThanOrEqual":"25.8.1","status":"affected","version":"25.8.1","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a840bc1fa8d3d9fecb9147fe177815dbfacd6940aa19174729bf9200036eb100 · sha256:f37ae5188d2f450f… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":5.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a840bc1fa8d3d9fecb9147fe177815dbfacd6940aa19174729bf9200036eb100 · sha256:f37ae5188d2f450f… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a840bc1fa8d3d9fecb9147fe177815dbfacd6940aa19174729bf9200036eb100 · sha256:f37ae5188d2f450f… · /containers/adp/0/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://hackerone.com/reports/3546390"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a840bc1fa8d3d9fecb9147fe177815dbfacd6940aa19174729bf9200036eb100 · sha256:f37ae5188d2f450f… · /containers/cna/references/1
{"url":"https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a840bc1fa8d3d9fecb9147fe177815dbfacd6940aa19174729bf9200036eb100 · sha256:f37ae5188d2f450f… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.