Red Hat Product Errata RHSA-2026:18030 - Security Advisory Issued: 2026-05-18 Updated: 2026-05-18 RHSA-2026:18030 - Security Advisory Overview Updated Packages Synopsis Important: ruby:3.3 security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for the ruby:3.3 module is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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): erb: ERB: Arbitrary code execution via deserialization bypass (CVE-2026-41316) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 9 x86_64 Red Hat Enterprise Linux for IBM z Systems 9 s390x Red Hat Enterprise Linux for Power, little endian 9 ppc64le Red Hat Enterprise Linux for ARM 64 9 aarch64 Fixes BZ - 2461369 - CVE-2026-41316 erb: ERB: Arbitrary code execution via deserialization bypass CVEs CVE-2026-41316 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 9 SRPM ruby-3.3.10-6.module+el9.7.0+24248+66578cbb.src.rpm SHA-256: fca90b44b9415fd45b4651a47d2b2cc8c876cb605aba531ca0b7a1b8e56df646 rubygem-mysql2-0.5.5-3.module+el9.7.0+24119+ccc80daf.src.rpm SHA-256: 936c04a25ba918296177f2b8d2c7e39096f6ab835fd46b85eaaa63fccbc94c54 rubygem-pg-1.5.4-2.module+el9.7.0+24119+ccc80daf.src.rpm SHA-256: 35db3040543656bedf0778c3b03740a606bc479c502040c429505cef27ab43fa x86_64 ruby-default-gems-3.3.10-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: d075035348b8a3c692d2ad6f89db8b574e22fdb421182fb99792d1b0b85e96ef ruby-doc-3.3.10-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 5fe05f03ef3faa7784f1dfa18522c43c00b83bf7bcd57ac23012c359f179bf77 rubygem-bundler-2.5.22-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 662117931a64d070afa831526f495ce7790983f8d543eee27b36797f942feede rubygem-irb-1.13.1-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 126b344e0404ef57b90cf1c9eab3ecc9caf326b89de7e4a69e919961542b3bc6 rubygem-minitest-5.20.0-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 093eb9105e5b4fd992c8a307699552b448781eda9365df9eac2b3293949fedb3 rubygem-mysql2-doc-0.5.5-3.module+el9.7.0+24119+ccc80daf.noarch.rpm SHA-256: 0e53f839591fb3e2d02f6a16d4fbfe4d2d7803df569812558a169a75252b91b8 rubygem-pg-doc-1.5.4-2.module+el9.7.0+24119+ccc80daf.noarch.rpm SHA-256: beae5d79fb49794db3e3352ea60c5ee0877f7f9fdd16a61cfb76038baddd88ab rubygem-power_assert-2.0.3-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 2fc561cb56f56f8172e1aa12cb7c0df84652e1fe11e9d1af70a27171e0da3224 rubygem-rake-13.1.0-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 3e706841366c2267be3cb1b27bf34169eab04b25ef227539d0c0004a4993bf89 rubygem-rdoc-6.6.3.1-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 485ec07d8e5d6a6fb18c274b0f6bb0f802f83e23a0d311adc641b7fc8deb2c62 rubygem-rexml-3.4.4-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 2ffaa4d6034308ab7cc78b9f9a8b7b226223d4a4d0d0193c32a6a914c3d4cb03 rubygem-rss-0.3.1-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: b382dec8fbe7a810eca41f5a7946330137ad6dbb09c91bc64ec77503319d9138 rubygem-test-unit-3.6.1-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 1ddfd4a71b16890de31d6a9feeb35ebdc4a7842ccaadf27cd020b31cc6f4c8b2 rubygem-typeprof-0.21.9-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 56758808f2b847191ff671ef4b98ef7c6d3f8843d39707ff8c59fc5a80361995 rubygems-3.5.22-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: eeb0267dfbaad6727766b97bf2b009a3cbdf1f450b50cdb228c62b2e7c59cf69 rubygems-devel-3.5.22-6.module+el9.7.0+24248+66578cbb.noarch.rpm SHA-256: 3acf5bd826bfa17c21255c3f0054ec89af2f8786ae1ae9349cb1d921f113c15b ruby-3.3.10-6.module+el9.7.0+24248+66578cbb.i686.rpm SHA-256: 3ffe1fcccee06c99e24bbed4487a879d031247d49edb4746175249c001d2deb6 ruby-3.3.10-6.module+el9.7.0+24248+66578cbb.x86_64.rpm SHA-256: 6ac486282cedfdf7af049aa36b92694966b7d492895597f969e3f0ea36525f2f ruby-bundled-gems-3.3.10-6.module+el9.7.0+24248+66578cbb.i686.rpm SHA-256: dd9945594ee99a78a9e0498983da26780bb1bd5e7caefdd88c58bf94f1114ff1 ruby-bundled-gems-3.3.10-6.module+el9.7.0+24248+66578cbb.x86_64.rpm SHA-256: 76f6d858fb4f19ac96d05c3d85bcfd7a1dbdc3989b2ca28dec921b552ceb7038 ruby-bundled-gems-debuginfo-3.3.10-6.module+el9.7.0+24248+66578cbb.i686.rpm SHA-256: 5af15f783ad949d22a6a735cf40ec01c78f560a81c57b6195da06e159dd3f2c2 ruby-bundled-gems-debuginfo-3.3.10-6.module+el9.7.0+24248+66578cbb.x86_64.rpm SHA-256: 0b2841a7cdf73e3293f7ed07bcfc561049d342c9f2bea6caf0211c66b127f420 ruby-debuginfo-3.3.10-6.module+el9.7.0+24248+66578cbb.i686.rpm SHA-256: ee3c190712579f3fcb8fe1ae1a3b9a5d023daffbdb666c57a532284ba2135297 ruby-debuginfo-3.3.10-6.module+el9.7.0+24248+66578cbb.x86_64.rpm SHA-256: 6e76a3fdbed11799e3542ca93bccb9bc7e45dd77f5937ea70095b6eaa2f9c359 ruby-debugsource-3.3.10-6.module+el9.7.0+24248+66578cbb.i686.rpm SHA-256: 2610d4ba8710e53bd9d1b820b674d638065515e622c6b7bc550454065c3a85d5 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