CVE-2026-21717 | Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1 V8 Handler JSON.parse denial of service

VDB-354148 · CVE-2026-21717 · GCVE-0-2026-21717 NODE.JS UP TO 20.20.1/22.22.1/24.14.0/25.8.1 V8 HANDLER JSON.PARSE DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.6 $0-$5k 4.59+ Summaryinfo A vulnerability was found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1 and classified as problematic. This vulnerability affects the function JSON.parse of the component V8 Handler. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2026-21717. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1. It has been declared as problematic. This vulnerability affects the function JSON.parse of the component V8 Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The advisory is shared for download at nodejs.org. This vulnerability was named CVE-2026-21717. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499. Upgrading to version 20.20.2, 22.22.2, 24.14.1 or 25.8.2 eliminates this vulnerability. The upgrade is hosted for download at nodejs.org. Productinfo Type JavaScript Library Name Node.js Version 20.20.0 20.20.1 22.22.0 22.22.1 24.0 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 24.10 24.11 24.12 24.13 24.14.0 25.8.0 25.8.1 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.7 VulDB Meta Temp Score: 3.6 VulDB Base Score: 3.7 VulDB Temp Score: 3.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Denial of service CWE: CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Node.js 20.20.2/22.22.2/24.14.1/25.8.2 Timelineinfo 03/30/2026 Advisory disclosed 03/30/2026 +0 days VulDB entry created 03/30/2026 +0 days VulDB entry last update Sourcesinfo Advisory: nodejs.org Status: Confirmed CVE: CVE-2026-21717 (🔒) GCVE (CVE): GCVE-0-2026-21717 GCVE (VulDB): GCVE-100-354148 Entryinfo Created: 03/30/2026 07:41 Changes: 03/30/2026 07:41 (54) Complete: 🔍 Cache ID: 99:602:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸