Uncontrolled Recursion Affecting label-studio package, versions <1.23.1-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.46% (37th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LABELSTUDIO-20147469
  • published26 Sept 2026
  • disclosed27 Aug 2026

Introduced: 27 Aug 2026

CVE-2026-81724  (opens in a new tab)
CWE-674  (opens in a new tab)

How to fix?

Upgrade Minimos:latest label-studio to version 1.23.1-r0 or higher.

NVD Description

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

NLTK before 3.10.3 contains an uncontrolled recursion vulnerability in nltk.featstruct.FeatStructReader that allows unauthenticated attackers to cause a denial of service by supplying deeply nested feature-structure input. Attackers can craft trivial payloads with nested brackets that exceed Python's recursion limit and raise an unhandled RecursionError, crashing applications that parse user-supplied feature structures or feature grammars.

CVSS Base Scores

version 3.1