Use After Free Affecting nodejs package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CONAN-NODEJS-22477528
- published12 Nov 2026
- disclosed11 Nov 2026
- creditChris Rohlf
Introduced: 11 Nov 2026
NewCVE-2026-123874 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Use After Free in HTTP/2 stream handling, where an Http2Stream is freed while a write request that points to it is still queued on the socket. An attacker can corrupt server memory by resetting a stream while its write is pending, because the completing write dereferences the freed object and makes a virtual call through it. Only servers that serve files with stream.respondWithFile() or stream.respondWithFD() are affected.