## Regexp compilation fixes related to GitLab's CVE-2026-89078, CVE-2026-93577, CVE-2026-97229 and CVE-2026-110264

- 種別: release
- 関連技術: ruby, gitlab
- CVE: CVE-2026-89078, CVE-2026-93577, CVE-2026-97229, CVE-2026-110264
- 公開日時: 2026-10-23T03:11:22.000Z
- 情報源: Ruby News (https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/)
- パーマリンク: https://vulnpulse.app/items/ruby-news-4ea9c64f1e94

We have released Ruby 4.0.9, 3.4.12 and 3.3.13. They fix several bugs in Ruby’s regular expression engine (Onigmo) that GitLab found could be used for remote code execution on GitLab servers. GitLab published four CVEs for these issues, and the Ruby releases contain the fixes for the underlying bugs in Ruby. Background GitLab compiles regular expressions supplied by its users, such as patterns in CI configuration, with Regexp.new . GitLab found that specially crafted patterns could corrupt memory while Ruby compiles them, and that this could be turned into remote code execution on GitLab serv…