Loop with Unreachable Exit Condition ('Infinite Loop') Affecting jupyter-base-notebook package, versions <7.6.3-r2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.59% (46th percentile)

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  • Snyk IDSNYK-WOLFILATEST-JUPYTERBASENOTEBOOK-20563060
  • published7 Oct 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

CVE-2026-67213  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Wolfi jupyter-base-notebook to version 7.6.3-r2 or higher.

NVD Description

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

nanoid (Nano ID) before 5.1.6 contains an infinite loop in the customAlphabet and customRandom functions. When these functions are configured with a size of 0, the internal generation loop never satisfies its exit condition and spins indefinitely, hanging the calling thread. An application that passes an unvalidated, attacker-controlled size of 0 to these functions is exposed to a denial-of-service condition.

CVSS Base Scores

version 3.1