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Advisory record · GHSA-3hg2-r75x-g69m

Vyper has incorrect re-entrancy lock when key is empty string

CVSS 5.3 MediumEPSS 0.0051 · 43rd percentile

Published by the GitHub Advisory Database at 18 Sept 2023, 19:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
vyperPyPI>=0.2.9, <0.3.100.3.10
Identifiers
GHSA-3hg2-r75x-g69m · CVE-2023-42441 · PYSEC-2023-305
Weakness (CWE)
CWE-667 · CWE-833
Tags
Published
18 Sept 2023
Updated
10 Sept 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
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0051, the 43rd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:36 UTC First seen by agentprime
  2. 31 Oct 2026, 14:36 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.