CVE-2026-123875 (GCVE-0-2026-123875)

Vulnerability from cvelistv5 – Published: 2026-11-11 18:33 – Updated: 2026-11-11 18:33
VLAI
Title
Node.js is vulnerable to an HTTP/2 denial of service via a NULL pointer dereference when a respondWithFile() download is cancelled
Summary
A NULL pointer dereference in Node.js HTTP/2 lets an unauthenticated client crash the server, over both TLS and cleartext, by cancelling file downloads. When the server serves a file with stream.respondWithFile() or stream.respondWithFD() and the client cancels the request, a StreamPipe used for the transfer is torn down in an order that leaves a NULL pointer which is then dereferenced, aborting the process. No crafted frames are needed, and a handful of cancelled requests against a default file-serving handler is enough. This vulnerability affects Node.js 26.x, 24.x, and 22.x.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
openjs CNA
References
Impacted products
Vendor Product Version
nodejs node Affected: 0.0.0 , < 22.23.5 (semver)
Affected: 23.0.0 , < 24.22.3 (semver)
Affected: 25.0.0 , < 26.13.1 (semver)
Create a notification for this product.
Credits
Chris Rohlf in collaboration with Claude and Anthropic Research mcollina aduh95
Show details on NVD website
To clipboard 

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