9.8

CVE-2026-34060: shopify ruby_lsp Code Injection

CVSS: 9.8v3.1CriticalAnalyzed
AliasesDEBIAN-CVE-2026-34060GHSA-c4r5-fxqw-vh93
Published 31-03-2026Last modified 02-04-2026
Open JSON

Vulnerability summary

CVE-2026-34060 is a critical (CVSS 9.8) Code Injection vulnerability in shopify ruby_lsp. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · +0.12 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-03-2026
    PublishedVulnerability first disclosed.
  2. 02-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.12 pp

From 0.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Shopify3 products
Debian1 product
  • ruby-ruby-lsp< 0.26.9-0.1
RubyGems1 product
  • ruby-lsp< 0.26.9

3 vendors · 5 products

References

6 links