{"id":"RLSA-2026:20596","summary":"Important: ruby:4.0 security update","details":"Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.\n\nSecurity Fix(es):\n\n* ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection (CVE-2026-33210)\n\n* erb: ERB: Arbitrary code execution via deserialization bypass (CVE-2026-41316)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-05-28T16:00:10.399117778Z","published":"2026-05-28T15:43:06.024531Z","upstream":["CVE-2026-33210","CVE-2026-41316"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:20596"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449871"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461369"}],"affected":[{"package":{"name":"rubygem-mysql2","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/rubygem-mysql2?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.5.7-1.module+el9.8.0+40094+ce01217c"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:20596.json"}},{"package":{"name":"rubygem-pg","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/rubygem-pg?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.6.3-1.module+el9.8.0+40094+ce01217c"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:20596.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}