Back to overview

CVE-2026-34060

CRITICAL
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-34060
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-03-25 16:21 UTC
Published
2026-03-31 01:59 UTC
Last updated
2026-04-02 14:51 UTC
Primary CWE
CWE-94
CWE-94: Improper Control of Generation of Code ('Code Inject…
Vendor / Product
Shopify / ruby-lsp
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (2)
VendorProductPlatformVersions
Shopify ruby-lsp — < 0.26.9
Shopify Shopify.ruby-lsp — < 0.10.2
Weakness (CWE)
CWESourceDescription
CWE-94 cna CWE-94: Improper Control of Generation of Code ('Code Injection')
CVSS scores (2)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1 HIGH 4.0 cna 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
References (2)
Back to overview