CVE-2026-21712

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-21712
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-30 16:16:03 UTC
Updated2026-05-10 14:16:47 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.0 5.7 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.000330000 probability, percentile 0.098720000 (date 2026-05-12)

Problem Types: CWE-20 | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary5.7MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
3.0CNADECLARED5.7MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nodejs Node affected 24.14.0 24.14.0 semver Not specified
CNA Nodejs Node affected 25.8.1 25.8.1 semver Not specified

References

ReferenceSourceLinkTags
hackerone.com/reports/3546390 [email protected] hackerone.com
nodejs.org/en/blog/vulnerability/march-2026-security-releases [email protected] nodejs.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report