Medium severity · published Aug 7, 2026
CVE-2026-48122
Workspace settings can override executable and Gemfile paths used by the Ruby LSP VS Code extension
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Ruby LSP is an implementation of the language server protocol for Ruby. Several workspace-level settings in the Ruby LSP VS Code extension prior to version 0.10.4 could override the path to the Ruby executable, the version manager executables, or the Bundler `Gemfile` used at startup. A malicious repository containing a `.vscode/settings.json` could set these values to attacker-controlled targets. Opening and trusting the repository would then execute code with the privileges of the developer. The Ruby LSP gem and clients of the language server in other editors are not affected. Version 0.10.4 of the Ruby LSP VS Code extension fixes the issue.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
ruby-lsp · Shopify
< 0.10.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48122
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48122
github.com
https://github.com/Shopify/ruby-lsp/security/advisories/GHSA-2x7g-8mp4-572w
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