CVE-2026-34060CRITICAL 9.8EPSS p33.8%

CVE-2026-34060CVE-2026-34060

shopify / ruby_lsp

Description

Ruby LSP is an implementation of the language server protocol for Ruby. Prior to Shopify.ruby-lsp version 0.10.2 and ruby-lsp version 0.26.9, the rubyLsp.branch VS Code workspace setting was interpolated without sanitization into a generated Gemfile, allowing arbitrary Ruby code execution when a user opens a project containing a malicious .vscode/settings.json. This issue has been patched in Shopify.ruby-lsp version 0.10.2 and ruby-lsp version 0.26.9.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.43% probability of exploitation · percentile 33.8% · 2026-06-19T12:03:05Z
Published2026-03-31
Last modified2026-06-03

Underlying weaknesses· 1

CWE-94

References

  1. https://github.com/Shopify/ruby-lsp/releases/tag/v0.26.9
  2. https://github.com/Shopify/ruby-lsp/security/advisories/GHSA-c4r5-fxqw-vh93

1

TypeTargetConfidenceTier
WeaknessImproper Control of Generation of Code ('Code Injection')cwe-940%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.