Arbitrary Code Injection Affecting ruby-ruby-lsp package, versions <0.26.9-0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-RUBYRUBYLSP-15888538
- published4 Apr 2026
- disclosed31 Mar 2026
Introduced: 31 Mar 2026
CVE-2026-34060 (opens in a new tab)How to fix?
Upgrade Debian:unstable ruby-ruby-lsp to version 0.26.9-0.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby-ruby-lsp package and not the ruby-ruby-lsp package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.