Resource Exhaustion Affecting py3-jupyterlab package, versions <4.6.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.78% (52nd percentile)

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  • Snyk IDSNYK-WOLFILATEST-PY3JUPYTERLAB-17800692
  • published3 Jul 2026
  • disclosed17 Jun 2026

Introduced: 17 Jun 2026

NewCVE-2026-48779  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Wolfi py3-jupyterlab to version 4.6.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-jupyterlab package and not the py3-jupyterlab package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.

CVSS Base Scores

version 3.1