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RLSA-2026:33577

Security Mirrored from RHSA-2026:33577
Issued at: 2026-07-01
Updated at: 2026-07-11

Synopsis

Important: ruby:4.0 security update



Description

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Security Fix(es):

* ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses (CVE-2026-42245)

* ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol Arguments (CVE-2026-42258)

* net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS (CVE-2026-42246)

For 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.



Affected products

Rocky Linux 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2468495 2468498 2468499

CVEs

CVE-2026-42245 CVE-2026-42246 CVE-2026-42258

Affected packages

Rocky Linux 9 aarch64 - AppStream

rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-mysql2-debuginfo-0:0.5.7-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-mysql2-debugsource-0:0.5.7-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-mysql2-doc-0:0.5.7-1.module+el9.8.0+40094+ce01217c.noarch.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-pg-debuginfo-0:1.6.3-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-pg-debugsource-0:1.6.3-1.module+el9.8.0+40094+ce01217c.aarch64.rpm rubygem-pg-doc-0:1.6.3-1.module+el9.8.0+40094+ce01217c.noarch.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.src.rpm ruby-bundled-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-bundled-gems-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-debugsource-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-default-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-devel-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-doc-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-bigdecimal-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-bigdecimal-debuginfo-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-bundler-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-io-console-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-io-console-debuginfo-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-irb-0:1.16.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-json-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-json-debuginfo-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-minitest-0:6.0.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-power_assert-0:3.0.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-psych-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-psych-debuginfo-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-racc-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-racc-debuginfo-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-rake-0:13.3.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rbs-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-rbs-debuginfo-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm rubygem-rdoc-0:7.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rexml-0:3.4.4-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rss-0:0.3.2-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-devel-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-test-unit-0:3.7.5-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-typeprof-0:0.31.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-libs-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm ruby-libs-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.aarch64.rpm

Rocky Linux 9 ppc64le - AppStream

rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-mysql2-debuginfo-0:0.5.7-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-mysql2-debugsource-0:0.5.7-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-mysql2-doc-0:0.5.7-1.module+el9.8.0+40094+ce01217c.noarch.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-pg-debuginfo-0:1.6.3-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-pg-debugsource-0:1.6.3-1.module+el9.8.0+40094+ce01217c.ppc64le.rpm rubygem-pg-doc-0:1.6.3-1.module+el9.8.0+40094+ce01217c.noarch.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.src.rpm ruby-bundled-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-bundled-gems-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-debugsource-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-default-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-devel-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-doc-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-bigdecimal-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-bigdecimal-debuginfo-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-bundler-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-io-console-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-io-console-debuginfo-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-irb-0:1.16.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-json-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-json-debuginfo-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-minitest-0:6.0.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-power_assert-0:3.0.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-psych-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-psych-debuginfo-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-racc-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-racc-debuginfo-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-rake-0:13.3.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rbs-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-rbs-debuginfo-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm rubygem-rdoc-0:7.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rexml-0:3.4.4-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rss-0:0.3.2-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-devel-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-test-unit-0:3.7.5-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-typeprof-0:0.31.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-libs-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm ruby-libs-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-mysql2-debuginfo-0:0.5.7-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-mysql2-debugsource-0:0.5.7-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-mysql2-doc-0:0.5.7-1.module+el9.8.0+40094+ce01217c.noarch.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-pg-debuginfo-0:1.6.3-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-pg-debugsource-0:1.6.3-1.module+el9.8.0+40094+ce01217c.s390x.rpm rubygem-pg-doc-0:1.6.3-1.module+el9.8.0+40094+ce01217c.noarch.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.src.rpm ruby-bundled-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-bundled-gems-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-debugsource-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-default-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-devel-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-doc-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-bigdecimal-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-bigdecimal-debuginfo-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-bundler-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-io-console-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-io-console-debuginfo-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-irb-0:1.16.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-json-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-json-debuginfo-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-minitest-0:6.0.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-power_assert-0:3.0.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-psych-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-psych-debuginfo-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-racc-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-racc-debuginfo-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-rake-0:13.3.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rbs-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-rbs-debuginfo-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm rubygem-rdoc-0:7.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rexml-0:3.4.4-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rss-0:0.3.2-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-devel-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-test-unit-0:3.7.5-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-typeprof-0:0.31.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-libs-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm ruby-libs-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-mysql2-0:0.5.7-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-mysql2-debuginfo-0:0.5.7-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-mysql2-debugsource-0:0.5.7-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-mysql2-doc-0:0.5.7-1.module+el9.8.0+40094+ce01217c.noarch.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.src.rpm rubygem-pg-0:1.6.3-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-pg-debuginfo-0:1.6.3-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-pg-debugsource-0:1.6.3-1.module+el9.8.0+40094+ce01217c.x86_64.rpm rubygem-pg-doc-0:1.6.3-1.module+el9.8.0+40094+ce01217c.noarch.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.src.rpm ruby-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-bundled-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-bundled-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-bundled-gems-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-bundled-gems-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-debugsource-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-debugsource-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-default-gems-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-devel-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-devel-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-doc-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-bigdecimal-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-bigdecimal-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-bigdecimal-debuginfo-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-bigdecimal-debuginfo-0:4.0.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-bundler-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-io-console-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-io-console-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-io-console-debuginfo-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-io-console-debuginfo-0:0.8.2-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-irb-0:1.16.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-json-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-json-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-json-debuginfo-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-json-debuginfo-0:2.18.0-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-minitest-0:6.0.0-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-power_assert-0:3.0.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-psych-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-psych-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-psych-debuginfo-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-psych-debuginfo-0:5.3.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-racc-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-racc-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-racc-debuginfo-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-racc-debuginfo-0:1.8.1-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-rake-0:13.3.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rbs-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-rbs-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-rbs-debuginfo-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm rubygem-rbs-debuginfo-0:3.10.0-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm rubygem-rdoc-0:7.0.3-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rexml-0:3.4.4-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-rss-0:0.3.2-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygems-devel-0:4.0.6-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-test-unit-0:3.7.5-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm rubygem-typeprof-0:0.31.1-33.module+el9.8.0+40231+a3ab4fa6.noarch.rpm ruby-libs-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-libs-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm ruby-libs-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.i686.rpm ruby-libs-debuginfo-0:4.0.3-33.module+el9.8.0+40231+a3ab4fa6.x86_64.rpm