[DRE-maint] Bug#1132583: ruby-ruby-lsp: CVE-2026-34060

[Salvatore Bonaccorso]

Source: ruby-ruby-lsp
Version: 0.26.7-1
Severity: grave
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for ruby-ruby-lsp.

CVE-2026-34060[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-34060
    https://www.cve.org/CVERecord?id=CVE-2026-34060
[1] https://github.com/Shopify/ruby-lsp/security/advisories/GHSA-c4r5-fxqw-vh93

Regards,
Salvatore