{"schema_version":"1.7.2","id":"OESA-2026-2578","modified":"2026-06-05T15:49:06Z","published":"2026-06-05T15:49:06Z","upstream":["CVE-2026-42245","CVE-2026-42246","CVE-2026-42257","CVE-2026-42258"],"summary":"ruby security update","details":"Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).\r\n\r\nSecurity Fix(es):\n\nNet::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, Net::IMAP::ResponseReader has quadratic time complexity when reading large responses containing many string literals. A hostile server can send responses which are crafted to exhaust the client's CPU for a denial of service attack. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.(CVE-2026-42245)\n\nNet::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4.(CVE-2026-42246)\n\nNet::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, several Net::IMAP commands accept a raw string argument that is sent to the server without validation or escaping. If this string is derived from user-controlled input, it may contain contain CRLF sequences, which an attacker can use to inject arbitrary IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.(CVE-2026-42257)\n\nNet::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, symbol arguments to commands are vulnerable to a CRLF Injection / IMAP Command injection via Symbol arguments passed to IMAP commands. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.(CVE-2026-42258)","affected":[{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"ruby","purl":"pkg:rpm/openEuler/ruby&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.8-138.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["ruby-2.5.8-138.oe2003sp4.aarch64.rpm","ruby-debuginfo-2.5.8-138.oe2003sp4.aarch64.rpm","ruby-debugsource-2.5.8-138.oe2003sp4.aarch64.rpm","ruby-devel-2.5.8-138.oe2003sp4.aarch64.rpm","rubygem-bigdecimal-1.3.4-138.oe2003sp4.aarch64.rpm","rubygem-io-console-0.4.6-138.oe2003sp4.aarch64.rpm","rubygem-json-2.1.0-138.oe2003sp4.aarch64.rpm","rubygem-openssl-2.1.2-138.oe2003sp4.aarch64.rpm","rubygem-psych-3.0.2-138.oe2003sp4.aarch64.rpm"],"noarch":["ruby-help-2.5.8-138.oe2003sp4.noarch.rpm","ruby-irb-2.5.8-138.oe2003sp4.noarch.rpm","rubygem-did_you_mean-1.2.0-138.oe2003sp4.noarch.rpm","rubygem-minitest-5.10.3-138.oe2003sp4.noarch.rpm","rubygem-net-telnet-0.1.1-138.oe2003sp4.noarch.rpm","rubygem-power_assert-1.1.1-138.oe2003sp4.noarch.rpm","rubygem-rake-12.3.0-138.oe2003sp4.noarch.rpm","rubygem-rdoc-6.0.1.1-138.oe2003sp4.noarch.rpm","rubygem-test-unit-3.2.7-138.oe2003sp4.noarch.rpm","rubygem-xmlrpc-0.3.0-138.oe2003sp4.noarch.rpm","rubygems-2.7.6-138.oe2003sp4.noarch.rpm","rubygems-devel-2.7.6-138.oe2003sp4.noarch.rpm"],"src":["ruby-2.5.8-138.oe2003sp4.src.rpm"],"x86_64":["ruby-2.5.8-138.oe2003sp4.x86_64.rpm","ruby-debuginfo-2.5.8-138.oe2003sp4.x86_64.rpm","ruby-debugsource-2.5.8-138.oe2003sp4.x86_64.rpm","ruby-devel-2.5.8-138.oe2003sp4.x86_64.rpm","rubygem-bigdecimal-1.3.4-138.oe2003sp4.x86_64.rpm","rubygem-io-console-0.4.6-138.oe2003sp4.x86_64.rpm","rubygem-json-2.1.0-138.oe2003sp4.x86_64.rpm","rubygem-openssl-2.1.2-138.oe2003sp4.x86_64.rpm","rubygem-psych-3.0.2-138.oe2003sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"ruby","purl":"pkg:rpm/openEuler/ruby&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.3-146.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["ruby-3.0.3-146.oe2203sp4.aarch64.rpm","ruby-debuginfo-3.0.3-146.oe2203sp4.aarch64.rpm","ruby-debugsource-3.0.3-146.oe2203sp4.aarch64.rpm","ruby-devel-3.0.3-146.oe2203sp4.aarch64.rpm","rubygem-bigdecimal-3.0.0-146.oe2203sp4.aarch64.rpm","rubygem-io-console-0.5.7-146.oe2203sp4.aarch64.rpm","rubygem-json-2.5.1-146.oe2203sp4.aarch64.rpm","rubygem-openssl-2.2.1-146.oe2203sp4.aarch64.rpm","rubygem-psych-3.3.2-146.oe2203sp4.aarch64.rpm"],"noarch":["ruby-help-3.0.3-146.oe2203sp4.noarch.rpm","ruby-irb-3.0.3-146.oe2203sp4.noarch.rpm","rubygem-bundler-2.2.32-146.oe2203sp4.noarch.rpm","rubygem-did_you_mean-1.5.0-146.oe2203sp4.noarch.rpm","rubygem-minitest-5.14.2-146.oe2203sp4.noarch.rpm","rubygem-rake-13.0.3-146.oe2203sp4.noarch.rpm","rubygem-rbs-1.4.0-146.oe2203sp4.noarch.rpm","rubygem-rdoc-6.3.3-146.oe2203sp4.noarch.rpm","rubygem-rexml-3.2.5-146.oe2203sp4.noarch.rpm","rubygem-rss-0.2.9-146.oe2203sp4.noarch.rpm","rubygem-test-unit-3.3.7-146.oe2203sp4.noarch.rpm","rubygem-typeprof-0.15.2-146.oe2203sp4.noarch.rpm","rubygems-3.2.32-146.oe2203sp4.noarch.rpm","rubygems-devel-3.2.32-146.oe2203sp4.noarch.rpm"],"src":["ruby-3.0.3-146.oe2203sp4.src.rpm"],"x86_64":["ruby-3.0.3-146.oe2203sp4.x86_64.rpm","ruby-debuginfo-3.0.3-146.oe2203sp4.x86_64.rpm","ruby-debugsource-3.0.3-146.oe2203sp4.x86_64.rpm","ruby-devel-3.0.3-146.oe2203sp4.x86_64.rpm","rubygem-bigdecimal-3.0.0-146.oe2203sp4.x86_64.rpm","rubygem-io-console-0.5.7-146.oe2203sp4.x86_64.rpm","rubygem-json-2.5.1-146.oe2203sp4.x86_64.rpm","rubygem-openssl-2.2.1-146.oe2203sp4.x86_64.rpm","rubygem-psych-3.3.2-146.oe2203sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"ruby","purl":"pkg:rpm/openEuler/ruby&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2-154.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["ruby-3.2.2-154.oe2403sp1.aarch64.rpm","ruby-bundled-gems-3.2.2-154.oe2403sp1.aarch64.rpm","ruby-debuginfo-3.2.2-154.oe2403sp1.aarch64.rpm","ruby-debugsource-3.2.2-154.oe2403sp1.aarch64.rpm","ruby-devel-3.2.2-154.oe2403sp1.aarch64.rpm","rubygem-bigdecimal-3.1.3-154.oe2403sp1.aarch64.rpm","rubygem-io-console-0.6.0-154.oe2403sp1.aarch64.rpm","rubygem-json-2.6.3-154.oe2403sp1.aarch64.rpm","rubygem-openssl-3.1.0-154.oe2403sp1.aarch64.rpm","rubygem-psych-5.0.1-154.oe2403sp1.aarch64.rpm","rubygem-rbs-2.8.2-154.oe2403sp1.aarch64.rpm"],"noarch":["ruby-help-3.2.2-154.oe2403sp1.noarch.rpm","ruby-irb-3.2.2-154.oe2403sp1.noarch.rpm","rubygem-did_you_mean-1.6.3-154.oe2403sp1.noarch.rpm","rubygem-minitest-5.16.3-154.oe2403sp1.noarch.rpm","rubygem-rake-13.0.6-154.oe2403sp1.noarch.rpm","rubygem-rdoc-6.5.0-154.oe2403sp1.noarch.rpm","rubygem-rexml-3.2.5-154.oe2403sp1.noarch.rpm","rubygem-rss-0.2.9-154.oe2403sp1.noarch.rpm","rubygem-test-unit-3.5.7-154.oe2403sp1.noarch.rpm","rubygem-typeprof-0.21.3-154.oe2403sp1.noarch.rpm","rubygems-3.4.10-154.oe2403sp1.noarch.rpm","rubygems-devel-3.4.10-154.oe2403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