Missing Release of Memory after Effective Lifetime Affecting nodejs package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.53% (46th percentile)

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  • Snyk IDSNYK-CONAN-NODEJS-22470395
  • published12 Nov 2026
  • disclosed11 Nov 2026
  • creditpimterry

Introduced: 11 Nov 2026

NewCVE-2026-123865  (opens in a new tab)
CWE-401  (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 Missing Release of Memory after Effective Lifetime due to a resource leak in HTTP/2 session handling, where a protocol error during connection shutdown tears the session down inside nghttp2 without Node.js noticing. An attacker can exhaust server memory and file descriptors by sending GOAWAY(NO_ERROR) to start the shutdown and then an invalid frame, such as one with an oversized frame header, which leaves the session and its socket in CLOSE_WAIT indefinitely. Only servers that serve HTTP/2 are affected.

This vulnerability is a bypass of the fix for CVE-2026-48937.

CVSS Base Scores

version 4.0
version 3.1