{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-123865", "tracking": { "current_release_date": "2026-11-13T14:29:35.081739Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-123865", "initial_release_date": "2026-11-11T18:39:03.254974Z", "revision_history": [ { "date": "2026-11-11T18:39:03.254974Z", "number": "1", "summary": "CWES created (1).| Products created (3).| References created (2).| Description created for source.| Unknown change." }, { "date": "2026-11-11T18:39:07.483541Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-11-11T19:32:06.655535Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-11-11T19:32:08.965832Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-11-12T00:34:18.963689Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (6).| Product Identifiers created (1).| Product Remediations created (6).| References created (4).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-11-12T00:34:20.227949Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-11-12T02:41:47.777261Z", "number": "7", "summary": "Source connected.| CVE status created. (valid)" }, { "date": "2026-11-12T06:44:35.869009Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products connected (1)." }, { "date": "2026-11-12T06:44:37.139974Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-11-12T12:19:48.134714Z", "number": "10", "summary": "Source connected.| CVE status created. (valid)| Products connected (3).| References created (3)." }, { "date": "2026-11-12T12:19:51.334152Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-11-12T14:20:18.976925Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)" }, { "date": "2026-11-12T16:16:58.449568Z", "number": "13", "summary": "EPSS created.| Unknown change." }, { "date": "2026-11-12T16:19:42.004695Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-11-12T18:27:30.248737Z", "number": "15", "summary": "CVSS created.| Products created (4).| References created (1).| Description created for source.| Unknown change." }, { "date": "2026-11-12T18:27:33.002152Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-11-13T00:17:34.831873Z", "number": "17", "summary": "Products created (1)." }, { "date": "2026-11-13T14:29:33.019154Z", "number": "18", "summary": "NCSC Score updated." } ], "status": "interim", "version": "18" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<22.23.5", "product": { "name": "vers:unknown/<22.23.5", "product_id": "CSAFPID-10088842" } }, { "category": "product_version_range", "name": "vers:unknown/<24.22.3", "product": { "name": "vers:unknown/<24.22.3", "product_id": "CSAFPID-10088840" } }, { "category": "product_version_range", "name": "vers:unknown/<26.13.1", "product": { "name": "vers:unknown/<26.13.1", "product_id": "CSAFPID-10088841" } } ], "category": "product_name", "name": "Node.js" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-6014972", "product_identification_helper": { "cpe": "cpe:/a:redhat:hummingbird:1" } } } ], "category": "product_name", "name": "Red Hat Hardened Images" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8505503" } } ], "category": "product_name", "name": "nodejs20" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8505504" } } ], "category": "product_name", "name": "nodejs22" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8476917" } } ], "category": "product_name", "name": "nodejs24" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-6239276" } } ], "category": "product_name", "name": "nodejs25" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-8476920" } } ], "category": "product_name", "name": "nodejs26" } ], "category": "product_family", "name": "Red Hat Hardened Images" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<22.23.5-r0", "product": { "name": "vers:unknown/>=0|<22.23.5-r0", "product_id": "CSAFPID-10088332" } } ], "category": "product_name", "name": "nodejs" } ], "category": "product_family", "name": "Alpine:v3.21" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<22.23.5-r0", "product": { "name": "vers:unknown/>=0|<22.23.5-r0", "product_id": "CSAFPID-10088333" } } ], "category": "product_name", "name": "nodejs" } ], "category": "product_family", "name": "Alpine:v3.22" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<24.22.3-r0", "product": { "name": "vers:unknown/>=0|<24.22.3-r0", "product_id": "CSAFPID-10088334" } } ], "category": "product_name", "name": "nodejs" } ], "category": "product_family", "name": "Alpine:v3.23" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<24.22.3-r0", "product": { "name": "vers:unknown/>=0|<24.22.3-r0", "product_id": "CSAFPID-10088335" } } ], "category": "product_name", "name": "nodejs" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<26.13.1-r0", "product": { "name": "vers:unknown/>=0|<26.13.1-r0", "product_id": "CSAFPID-10092238" } } ], "category": "product_name", "name": "nodejs-current" } ], "category": "product_family", "name": "Alpine:v3.24" } ], "category": "vendor", "name": "Alpine" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-1408881" } } ], "category": "product_name", "name": "nodejs" } ], "category": "product_family", "name": "bookworm" } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/0.0.0|<22.23.5", "product": { "name": "vers:semver/0.0.0|<22.23.5", "product_id": "CSAFPID-10084446" } }, { "category": "product_version_range", "name": "vers:semver/23.0.0|<24.22.3", "product": { "name": "vers:semver/23.0.0|<24.22.3", "product_id": "CSAFPID-10084447" } }, { "category": "product_version_range", "name": "vers:semver/25.0.0|<26.13.1", "product": { "name": "vers:semver/25.0.0|<26.13.1", "product_id": "CSAFPID-10084445" } } ], "category": "product_name", "name": "nodejs" } ], "category": "vendor", "name": "nodejs" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-123865", "cwe": { "id": "CWE-772", "name": "Missing Release of Resource after Effective Lifetime" }, "notes": [ { "category": "description", "text": "An unauthenticated HTTP/2 client can permanently leak Node.js server memory and file descriptors. If a peer triggers a protocol error, for example an oversized frame header, while the session is already shutting down, nghttp2 tears the session down internally but Node.js never notices, leaving a dangling session: the socket stays in CLOSE_WAIT and all of Node.js's HTTP/2 state for that connection is held in memory indefinitely, with no further cost to the attacker. The attacker can start the shutdown remotely by sending GOAWAY(NO_ERROR), so it is reliable against default HTTP/2 servers. It is an incomplete-fix case of CVE-2026-48937: that fix detected nghttp2 internal terminations by watching for GOAWAY sent while not shutting down, but missed terminations that arrive while the session is already shutting down. This vulnerability affects Node.js 26.x, 24.x, and 22.x.", "title": "osvalpine - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Alpine%2FALPINE-CVE-2026-123865.json?alt=media" }, { "category": "description", "text": "An unauthenticated HTTP/2 client can permanently leak Node.js server memory and file descriptors. If a peer triggers a protocol error, for example an oversized frame header, while the session is already shutting down, nghttp2 tears the session down internally but Node.js never notices, leaving a dangling session: the socket stays in CLOSE_WAIT and all of Node.js's HTTP/2 state for that connection is held in memory indefinitely, with no further cost to the attacker. The attacker can start the shutdown remotely by sending GOAWAY(NO_ERROR), so it is reliable against default HTTP/2 servers. It is an incomplete-fix case of CVE-2026-48937: that fix detected nghttp2 internal terminations by watching for GOAWAY sent while not shutting down, but missed terminations that arrive while the session is already shutting down. This vulnerability affects Node.js 26.x, 24.x, and 22.x.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-123865" }, { "category": "description", "text": "An unauthenticated HTTP/2 client can permanently leak Node.js server memory and file descriptors. If a peer triggers a protocol error, for example an oversized frame header, while the session is already shutting down, nghttp2 tears the session down internally but Node.js never notices, leaving a dangling session: the socket stays in CLOSE_WAIT and all of Node.js's HTTP/2 state for that connection is held in memory indefinitely, with no further cost to the attacker. The attacker can start the shutdown remotely by sending GOAWAY(NO_ERROR), so it is reliable against default HTTP/2 servers. It is an incomplete-fix case of CVE-2026-48937: that fix detected nghttp2 internal terminations by watching for GOAWAY sent while not shutting down, but missed terminations that arrive while the session is already shutting down. This vulnerability affects Node.js 26.x, 24.x, and 22.x.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-123865" }, { "category": "description", "text": "A flaw was found in Node.js. An unauthenticated remote attacker can cause a Denial of Service (DoS) through resource exhaustion by permanently leaking server memory and file descriptors. By initiating a connection shutdown and sending a protocol-violating HTTP/2 frame, the internal protocol handler terminates the session without Node.js properly releasing the associated state. Over time, an attacker can accumulate dangling connections, ultimately exhausting server resources and disrupting service availability.\nThis vulnerability is rated as Important severity because remote, unauthenticated actors can induce memory and file descriptor leaks with minimal effort, resulting in a complete denial of service. Exposure is limited to deployments where Node.js applications directly handle HTTP/2 connections. Applications running standard HTTP/1.1 or those deployed behind front-end reverse proxies that terminate HTTP/2 traffic are not susceptible to this attack.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-123865" }, { "category": "description", "text": "An unauthenticated HTTP/2 client can permanently leak Node.js server memory and file descriptors. If a peer triggers a protocol error, for example an oversized frame header, while the session is already shutting down, nghttp2 tears the session down internally but Node.js never notices, leaving a dangling session: the socket stays in CLOSE_WAIT and all of Node.js's HTTP/2 state for that connection is held in memory indefinitely, with no further cost to the attacker. The attacker can start the shutdown remotely by sending GOAWAY(NO_ERROR), so it is reliable against default HTTP/2 servers. It is an incomplete-fix case of CVE-2026-48937: that fix detected nghttp2 internal terminations by watching for GOAWAY sent while not shutting down, but missed terminations that arrive while the session is already shutting down. This vulnerability affects Node.js 26.x, 24.x, and 22.x.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-123865" }, { "category": "other", "text": "0.00529", "title": "EPSS" }, { "category": "other", "text": "3.8", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to a product by vendor Open Source, There is cwe data available from source Nvd, There is product data available from source Debian", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 3\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-10084446", "CSAFPID-10084447", "CSAFPID-10084445", "CSAFPID-6014972", "CSAFPID-6239276", "CSAFPID-8476917", "CSAFPID-8476920", "CSAFPID-8505503", "CSAFPID-8505504", "CSAFPID-1408881", "CSAFPID-10088840", "CSAFPID-10088841", "CSAFPID-10088842", "CSAFPID-10088332", "CSAFPID-10088333", "CSAFPID-10088334", "CSAFPID-10088335", "CSAFPID-10092238" ] }, "references": [ { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Alpine%2FALPINE-CVE-2026-123865.json?alt=media" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-123865" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123865" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-123865" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-123865" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-123865" }, { "category": "external", "summary": "Source - hkcert", "url": "https://www.hkcert.org/security-bulletin/node-js-multiple-vulnerabilities_20261112" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4525.json" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0492" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4525.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4525" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; nvd; redhat", "url": "https://nodejs.org/en/blog/vulnerability/november-2026-security-releases" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; redhat", "url": "https://cna.openjsf.org/security-advisories.html" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-123865" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123865" }, { "category": "external", "summary": "Reference - osv", "url": "https://security.alpinelinux.org/vuln/CVE-2026-123865" } ], "remediations": [ { "category": "mitigation", "details": "1. Terminate HTTP/2 at an upstream reverse proxy:\nConfigure an edge reverse proxy (such as HAProxy, Envoy, or Apache HTTP Server) to handle client HTTP/2 traffic and proxy requests to the backend Node.js application over standard HTTP/1.1. Alternatively, if HTTP/2 capabilities are not required by the application, configure the Node.js application to use the standard `http` or `https` modules instead of `http2`.\n2. Restrict network access using firewalld:\nIf direct exposure cannot be avoided, limit network access to the Node.js HTTP/2 port so only trusted internal clients or reverse proxies can reach it:\nfirewall-cmd --permanent --zone=trusted --add-source=\nfirewall-cmd --permanent --zone=trusted --add-port=/tcp\nfirewall-cmd --reload\nCaveats:\nRestricting access via firewall rules blocks untrusted external networks from communicating directly with the service. Reloading firewalld applies changes immediately. Reconfiguring the Node.js application or underlying service settings requires restarting the Node.js process, which will temporarily interrupt active client connections.", "product_ids": [ "CSAFPID-6014972", "CSAFPID-6239276", "CSAFPID-8476917", "CSAFPID-8476920", "CSAFPID-8505503", "CSAFPID-8505504" ] } ], "scores": [ { "cvss_v3": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-10084445", "CSAFPID-10084446", "CSAFPID-10084447", "CSAFPID-10088332", "CSAFPID-10088333", "CSAFPID-10088334", "CSAFPID-10088335", "CSAFPID-10088840", "CSAFPID-10088841", "CSAFPID-10088842", "CSAFPID-10092238", "CSAFPID-1408881", "CSAFPID-6014972", "CSAFPID-6239276", "CSAFPID-8476917", "CSAFPID-8476920", "CSAFPID-8505503", "CSAFPID-8505504" ] } ], "title": "CVE-2026-123865" } ] }