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Advisory record · GHSA-mc9m-6fm9-pghc

Zoo Design Studio: Memory-corruption in memory handling of lib-kcl

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 20 Aug 2026, 18:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
zoo-kclPyPI<0.3.1530.3.153
kcl-libcrates.io<0.2.1530.2.153
Identifiers
GHSA-mc9m-6fm9-pghc
Weakness (CWE)
CWE-362 · CWE-416
Tags
Published
20 Aug 2026
Updated
20 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The zoo-kcl package before 0.3.153 and the kcl-lib crate before 0.2.153 have a race condition that can cause a use-after-free when environments are accessed concurrently, potentially returning a stale or corrupted environment. The source gives few details about what an attacker needs to trigger it. Upgrade zoo-kcl to 0.3.153 or kcl-lib to 0.2.153.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:39 UTC First seen by agentprime
  2. 31 Oct 2026, 14:39 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.