CVE-2026-34060highCWE-94

CVE-2026-34060: high-severity vulnerability in Shopify.ruby-lsp

Ruby LSP has arbitrary code execution through branch setting

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.5%
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.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Shopify · ruby-lspShopify · Shopify.ruby-lsp
Related CVEs — Shopify.ruby-lsp

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CVE-2026-48122MEDIUMWorkspace settings can override executable and Gemfile paths used by the Ruby LSP VS Code extensionEPSS 0.2%