CVE-2026-21710 | Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1 req.headersDistinct denial of service

VDB-354143 · CVE-2026-21710 · GCVE-0-2026-21710 NODE.JS UP TO 20.20.1/22.22.1/24.14.0/25.8.1 REQ.HEADERSDISTINCT DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 4.24+ Summaryinfo A vulnerability classified as problematic has been found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1. This impacts an unknown function. The manipulation of the argument req.headersDistinct leads to denial of service. This vulnerability is listed as CVE-2026-21710. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component. Detailsinfo A vulnerability, which was classified as problematic, has been found in Node.js up to 20.20.1/22.22.1/24.14.0/25.8.1. This issue affects some unknown processing. The manipulation of the argument req.headersDistinct with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. It is possible to read the advisory at nodejs.org. The identification of this vulnerability is CVE-2026-21710. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK. 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: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 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-2026-21710 (🔒) GCVE (CVE): GCVE-0-2026-21710 GCVE (VulDB): GCVE-100-354143 Entryinfo Created: 03/30/2026 07:41 Changes: 03/30/2026 07:41 (53) Complete: 🔍 Cache ID: 99:0F5:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸