{"affected":[{"defaultStatus":"unaffected","product":"node","source":"CNA: openjs","vendor":"nodejs","versions":[{"lessThan":"24.22.3","status":"affected","version":"24.0.0","versionType":"semver"},{"lessThan":"26.13.1","status":"affected","version":"25.0.0","versionType":"semver"}]}],"cveId":"CVE-2026-123874","cwes":["CWE-416"],"description":"A use-after-free in Node.js HTTP/2 lets an unauthenticated client corrupt server memory, over both TLS and cleartext, when the server serves files with respondWithFile() or respondWithFD(). A client can make the server free an Http2Stream while a write request that points to it is still queued on the socket; when that write completes, the code dereferences and makes a virtual call through the freed object. The only precondition is that the application serves a file with stream.respondWithFile() or stream.respondWithFD(), with default settings otherwise. This vulnerability affects Node.js 26.x (since 26.9.0) and 24.x (since 24.22.0).","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: openjs","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"}],"modifiedAt":1794421940292,"publishedAt":1794421940292,"references":[{"source":"CNA: openjs","tags":["vendor-advisory"],"url":"https://nodejs.org/en/blog/vulnerability/november-2026-security-releases"},{"source":"CNA: openjs","tags":[],"url":"https://cna.openjsf.org/security-advisories.html"}],"remediation":[],"revision":"0581e4e06863822fd00a14c43f08b0c837f254a5b9435e8c7dd0d8aaeac21f89","sources":[{"modifiedAt":1794421940292,"name":"CNA: openjs","retrievedAt":1794424118385,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123874"}],"ssvc":null,"status":"published","title":"Node.js is vulnerable to an HTTP/2 use-after-free via respondWithFile() stream reset during a pending write","updatedAt":1794424118385}