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Description

ERB is a templating system for Ruby. Ruby 2.7.0 (before ERB 2.2.0 was published on rubygems.org) introduced an `@_init` instance variable guard in `ERB#result` and `ERB#run` to prevent code execution when an ERB object is reconstructed via `Marshal.load` (deserialization). However, three other public methods that also evaluate `@src` via `eval()` were not given the same guard: `ERB#def_method`, `ERB#def_module`, and `ERB#def_class`. An attacker who can trigger `Marshal.load` on untrusted data in a Ruby application that has `erb` loaded can use `ERB#def_module` (zero-arg, default parameters) as a code execution sink, bypassing the `@_init` protection entirely. ERB 4.0.3.1, 4.0.4.1, 6.0.1.1, and 6.0.4 patch the issue.

Affected products

VendorProductAffectedFixed
ruby erb < 4.0.3.1, = 4.0.4, >= 5.0.0, < 6.0.1.1, >= 6.0.2, < 6.0.4 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 ruby3.3 No fix yet —
Debian 13 ruby3.3 3.3.13-0+deb13u1 —
Debian 12 ruby3.1 No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 jruby +1 No fix yet —
Ubuntu 26.04 LTS jruby +1 No fix yet —
Ubuntu 25.10 jruby +1 No fix yet —
Ubuntu 24.04 LTS ruby3.2 No fix yet —
Ubuntu 22.04 LTS ruby3.0 No fix yet —
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS jruby No fix yet —
Ubuntu 18.04 LTS jruby No fix yet —
Ubuntu 16.04 LTS jruby No fix yet —
Ubuntu Pro 20.04 LTS ruby2.7 No fix yet —
Ubuntu Pro 18.04 LTS ruby2.5 No fix yet —
Ubuntu Pro 16.04 LTS ruby2.3 No fix yet —
Ubuntu Pro 14.04 LTS jruby No fix yet —
ReleasePackageFixed inAdvisory
RHEL 10 ruby +5 3.3.10-12.el10_1 RHSA-2026:18065
RHEL 10 ruby4.0 +2 4.0.3-34.el10_2 RHSA-2026:20606
RHEL 10 ruby4.0-rubygem-mysql2 0.5.7-34.el10_2 RHSA-2026:20606
RHEL 10 ruby4.0-rubygem-pg 1.6.3-34.el10_2 RHSA-2026:20606
RHEL 10 rubygem-bigdecimal 3.1.5-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-bundler 2.5.22-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-io-console 0.7.1-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-irb 1.13.1-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-json 2.7.2-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-minitest 5.20.0-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-power_assert 2.0.3-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-psych 5.1.2-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-racc 1.7.3-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-rake 13.1.0-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-rbs 3.4.0-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-rdoc 6.6.3.1-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-rexml 3.4.4-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-rss 0.3.1-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-test-unit 3.6.1-12.el10_1 RHSA-2026:18065
RHEL 10 rubygem-typeprof 0.21.9-12.el10_1 RHSA-2026:18065
RHEL 10 rubygems +1 3.5.22-12.el10_1 RHSA-2026:18065
RHEL 9 ruby +4 3.0.7-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 ruby-bundled-gems 3.3.10-6.module+el9.7.0+24248+66578cbb RHSA-2026:20596, RHSA-2026:18030
RHEL 9 rubygem-bigdecimal 3.0.0-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-bundler 2.2.33-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-io-console 0.5.7-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-irb 1.3.5-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-json 2.5.1-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-minitest 5.14.2-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-mysql2 +1 0.5.5-3.module+el9.7.0+24119+ccc80daf RHSA-2026:20596, RHSA-2026:18030
RHEL 9 rubygem-pg +1 1.5.4-2.module+el9.7.0+24119+ccc80daf RHSA-2026:20596, RHSA-2026:18030
RHEL 9 rubygem-power_assert 1.2.1-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-psych 3.3.2-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-racc 1.7.3-6.module+el9.7.0+24248+66578cbb RHSA-2026:20596, RHSA-2026:18030
RHEL 9 rubygem-rake 13.0.3-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-rbs 1.4.0-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-rdoc 6.3.4.1-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-rexml 3.2.5-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-rss 0.2.9-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-test-unit 3.3.7-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygem-typeprof 0.15.2-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 9 rubygems +1 3.2.33-166.el9_7 RHSA-2026:20596, RHSA-2026:18039, RHSA-2026:18030
RHEL 8 ruby +5 3.3.10-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-abrt +1 0.4.0-1.module+el8.10.0+21226+b78a28c4 RHSA-2026:20614
RHEL 8 rubygem-bigdecimal 3.1.5-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-bundler 2.5.22-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-io-console 0.7.1-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-irb 1.13.1-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-json 2.7.2-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-minitest 5.20.0-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-mysql2 +1 0.5.5-1.module+el8.10.0+21226+b78a28c4 RHSA-2026:20614
RHEL 8 rubygem-pg +1 1.5.4-1.module+el8.10.0+21226+b78a28c4 RHSA-2026:20614
RHEL 8 rubygem-power_assert 2.0.3-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-psych 5.1.2-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-racc 1.7.3-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-rake 13.1.0-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-rbs 3.4.0-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-rdoc 6.6.3.1-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-rexml 3.4.4-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-rss 0.3.1-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-test-unit 3.6.1-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygem-typeprof 0.21.9-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
RHEL 8 rubygems +1 3.5.22-6.module+el8.10.0+24247+b74f0fb8 RHSA-2026:20614
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS ruby +5 3.3.10-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-bigdecimal 3.1.5-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-bundler 2.5.22-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-io-console 0.7.1-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-irb 1.13.1-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-json 2.7.2-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-minitest 5.20.0-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-power_assert 2.0.3-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-psych 5.1.2-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-racc 1.7.3-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-rake 13.1.0-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-rbs 3.4.0-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-rdoc 6.6.3.1-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-rexml 3.4.4-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-rss 0.3.1-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-test-unit 3.6.1-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygem-typeprof 0.21.9-11.el10_0.1 RHSA-2026:33478
RHEL 10.0 EUS rubygems +1 3.5.22-11.el10_0.1 RHSA-2026:33478
RHEL 9.6 EUS ruby +4 3.0.7-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS ruby-bundled-gems 3.3.10-6.module+el9.6.0+24475+76cce029 RHSA-2026:37238
RHEL 9.6 EUS rubygem-bigdecimal 3.0.0-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-bundler 2.2.33-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-io-console 0.5.7-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-irb 1.3.5-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-json 2.5.1-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-minitest 5.14.2-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-mysql2 +1 0.5.5-1.module+el9.4.0+21222+faeeed2f RHSA-2026:37238
RHEL 9.6 EUS rubygem-pg +1 1.5.4-1.module+el9.4.0+21222+faeeed2f RHSA-2026:37238
RHEL 9.6 EUS rubygem-power_assert 1.2.1-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-psych 3.3.2-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-racc 1.7.3-6.module+el9.6.0+24475+76cce029 RHSA-2026:37238
RHEL 9.6 EUS rubygem-rake 13.0.3-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-rbs 1.4.0-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-rdoc 6.3.4.1-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-rexml 3.2.5-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-rss 0.2.9-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-test-unit 3.3.7-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygem-typeprof 0.15.2-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.6 EUS rubygems +1 3.2.33-165.el9_6.1 RHSA-2026:37238, RHSA-2026:33462
RHEL 9.4 E4S ruby +3 3.0.7-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S ruby-doc +1 3.3.10-6.module+el9.4.0+24333+ed4ca411 RHSA-2026:26655
RHEL 9.4 E4S rubygem-bigdecimal 3.0.0-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-bundler 2.2.33-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-io-console 0.5.7-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-irb 1.3.5-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-json 2.5.1-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-minitest 5.14.2-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-mysql2 +1 0.5.5-1.module+el9.4.0+21222+faeeed2f RHSA-2026:26655
RHEL 9.4 E4S rubygem-pg +1 1.5.4-1.module+el9.4.0+21222+faeeed2f RHSA-2026:26655
RHEL 9.4 E4S rubygem-power_assert 1.2.1-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-psych 3.3.2-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-racc 1.7.3-6.module+el9.4.0+24333+ed4ca411 RHSA-2026:26655
RHEL 9.4 E4S rubygem-rake 13.0.3-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-rbs 1.4.0-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-rdoc 6.3.4.1-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-rexml 3.2.5-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-rss 0.2.9-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-test-unit 3.3.7-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygem-typeprof 0.15.2-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.4 E4S rubygems +1 3.2.33-162.el9_4.2 RHSA-2026:26655, RHSA-2026:26312
RHEL 9.2 E4S ruby +3 3.0.4-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-bigdecimal 3.0.0-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-bundler 2.2.33-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-io-console 0.5.7-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-irb 1.3.5-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-json 2.5.1-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-minitest 5.14.2-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-power_assert 1.2.0-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-psych 3.3.2-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-rake 13.0.3-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-rbs 1.4.0-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-rdoc 6.3.3-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-rexml 3.2.5-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-rss 0.2.9-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-test-unit 3.3.7-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygem-typeprof 0.15.2-161.el9_2.3 RHSA-2026:35834
RHEL 9.2 E4S rubygems +1 3.2.33-161.el9_2.3 RHSA-2026:35834
RHEL 9.0 E4S ruby +3 3.0.4-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-bigdecimal 3.0.0-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-bundler 2.2.33-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-io-console 0.5.7-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-irb 1.3.5-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-json 2.5.1-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-minitest 5.14.2-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-power_assert 1.2.0-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-psych 3.3.2-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-rake 13.0.3-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-rbs 1.4.0-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-rdoc 6.3.3-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-rexml 3.2.5-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-rss 0.2.9-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-test-unit 3.3.7-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygem-typeprof 0.15.2-160.2.el9_0 RHSA-2026:20670
RHEL 9.0 E4S rubygems +1 3.2.33-160.2.el9_0 RHSA-2026:20670

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 ruby-doc +1 3.3.10-12.el10_1 ALSA-2026:18065
AlmaLinux 10 ruby4.0 +2 4.0.3-34.el10_2 ALSA-2026:20606
AlmaLinux 10 ruby4.0-rubygem-mysql2 0.5.7-34.el10_2 ALSA-2026:20606
AlmaLinux 10 ruby4.0-rubygem-pg 1.6.3-34.el10_2 ALSA-2026:20606
AlmaLinux 10 rubygem-bundler 2.5.22-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-irb 1.13.1-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-minitest 5.20.0-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-power_assert 2.0.3-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-rake 13.1.0-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-rdoc 6.6.3.1-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-rexml 3.4.4-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-rss 0.3.1-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-test-unit 3.6.1-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygem-typeprof 0.21.9-12.el10_1 ALSA-2026:18065
AlmaLinux 10 rubygems +1 3.5.22-12.el10_1 ALSA-2026:18065
AlmaLinux 9 ruby +4 3.0.7-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 ruby-bundled-gems 3.3.10-6.module_el9.7.0+245+447713a2 ALSA-2026:20596, ALSA-2026:18030
AlmaLinux 9 rubygem-bigdecimal 3.0.0-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-bundler 2.2.33-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-io-console 0.5.7-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-irb 1.3.5-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-json 2.5.1-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-minitest 5.14.2-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-mysql2 +1 0.5.5-3.module_el9.7.0+184+e2e36072 ALSA-2026:20596, ALSA-2026:18030
AlmaLinux 9 rubygem-pg +1 1.5.4-2.module_el9.7.0+245+447713a2 ALSA-2026:20596, ALSA-2026:18030
AlmaLinux 9 rubygem-power_assert 1.2.1-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-psych 3.3.2-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-racc 1.7.3-6.module_el9.7.0+245+447713a2 ALSA-2026:20596, ALSA-2026:18030
AlmaLinux 9 rubygem-rake 13.0.3-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-rbs 1.4.0-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-rdoc 6.3.4.1-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-rexml 3.2.5-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-rss 0.2.9-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-test-unit 3.3.7-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygem-typeprof 0.15.2-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 9 rubygems +1 3.2.33-166.el9_7 ALSA-2026:20596, ALSA-2026:18039, ALSA-2026:18030
AlmaLinux 8 ruby +5 3.3.10-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-abrt +1 0.4.0-1.module_el8.10.0+3799+191214cc ALSA-2026:20614
AlmaLinux 8 rubygem-bigdecimal 3.1.5-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-bundler 2.5.22-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-io-console 0.7.1-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-irb 1.13.1-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-json 2.7.2-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-minitest 5.20.0-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-mysql2 +1 0.5.5-1.module_el8.10.0+3799+191214cc ALSA-2026:20614
AlmaLinux 8 rubygem-pg +1 1.5.4-1.module_el8.10.0+3799+191214cc ALSA-2026:20614
AlmaLinux 8 rubygem-power_assert 2.0.3-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-psych 5.1.2-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-racc 1.7.3-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-rake 13.1.0-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-rbs 3.4.0-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-rdoc 6.6.3.1-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-rexml 3.4.4-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-rss 0.3.1-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-test-unit 3.6.1-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygem-typeprof 0.21.9-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614
AlmaLinux 8 rubygems +1 3.5.22-6.module_el8.10.0+4183+69a3c42f ALSA-2026:20614

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 ruby 3.3.10-12.el10_1 RLSA-2026:18065
Rocky Linux 10 ruby4.0 4.0.3-34.el10_2 RLSA-2026:20606
Rocky Linux 9 ruby 3.0.7-166.el9_7 RLSA-2026:18039
Rocky Linux 9 rubygem-mysql2 0.5.5-3.module+el9.7.0+40032+36e56d0d RLSA-2026:20596, RLSA-2026:18030
Rocky Linux 9 rubygem-pg 1.6.3-1.module+el9.8.0+40094+ce01217c RLSA-2026:20596
Rocky Linux 8 rubygem-abrt 0.4.0-1.module+el8.5.0+668+665814fa RLSA-2026:20614
Rocky Linux 8 rubygem-mysql2 0.5.5-1.module+el8.10.0+1679+61871737 RLSA-2026:20614
Rocky Linux 8 rubygem-pg 1.5.4-1.module+el8.10.0+1679+61871737 RLSA-2026:20614
ReleasePackageFixed inAdvisory
SLES 15 SP7 ruby2.5 2.5.9-150700.24.11.1 SUSE-SU-2026:3556-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed ruby4.0 4.0.3-1.1 openSUSE-SU-2026:10609-1
openSUSE Leap 16.0 ruby3.4 3.4.10-160000.1.1 openSUSE-SU-2026:21878-1
ReleasePackageFixed inAdvisory
Alpine v3.21 ruby 3.3.13-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 ruby3.4 +5 3.4.8-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-bigdecimal 3.1.8-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-bundler 2.6.9-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-io-console 0.8.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-irb 1.14.3-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-json 2.9.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-minitest 5.25.4-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-power_assert 2.0.5-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-psych 5.2.2-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-racc 1.8.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-rake 13.2.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-rbs 3.8.0-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-rdoc 6.14.0-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-rexml 3.4.4-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-rss 0.3.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-test-unit 3.6.7-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygem-typeprof 0.30.1-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2023 ruby3.4-rubygems +1 3.6.9-27.amzn2023.0.5 ALAS2023-2026-1690
Amazon Linux 2 ruby +5 2.0.0.648-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-bigdecimal 1.2.0-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-io-console 0.4.2-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-json 1.7.7-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-minitest 4.3.2-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-psych 2.0.0-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-rake 0.9.6-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygem-rdoc 4.0.0-36.amzn2.0.18 ALAS2-2026-3284
Amazon Linux 2 rubygems +1 2.0.14.1-36.amzn2.0.18 ALAS2-2026-3284

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 ruby +5 3.3.10-12.el10_1 ELSA-2026-18065
Oracle Linux 10 ruby4.0 +2 4.0.3-35.el10_2 ELSA-2026-20606
Oracle Linux 10 ruby4.0-rubygem-mysql2 0.5.7-35.el10_2 ELSA-2026-20606
Oracle Linux 10 ruby4.0-rubygem-pg 1.6.3-35.el10_2 ELSA-2026-20606
Oracle Linux 10 rubygem-bigdecimal 3.1.5-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-bundler 2.5.22-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-io-console 0.7.1-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-irb 1.13.1-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-json 2.7.2-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-minitest 5.20.0-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-power_assert 2.0.3-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-psych 5.1.2-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-racc 1.7.3-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-rake 13.1.0-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-rbs 3.4.0-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-rdoc 6.6.3.1-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-rexml 3.4.4-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-rss 0.3.1-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-test-unit 3.6.1-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygem-typeprof 0.21.9-12.el10_1 ELSA-2026-18065
Oracle Linux 10 rubygems +1 3.5.22-12.el10_1 ELSA-2026-18065
Oracle Linux 9 ruby +4 3.0.7-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 ruby-bundled-gems 3.3.10-6.module+el9.7.0+90894+66578cbb ELSA-2026-20596, ELSA-2026-18030
Oracle Linux 9 rubygem-bigdecimal 3.0.0-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-bundler 2.2.33-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-io-console 0.5.7-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-irb 1.3.5-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-json 2.5.1-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-minitest 5.14.2-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-mysql2 +1 0.5.5-3.module+el9.7.0+90894+66578cbb ELSA-2026-20596, ELSA-2026-18030
Oracle Linux 9 rubygem-pg +1 1.5.4-2.module+el9.7.0+90894+66578cbb ELSA-2026-20596, ELSA-2026-18030
Oracle Linux 9 rubygem-power_assert 1.2.1-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-psych 3.3.2-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-racc 1.7.3-6.module+el9.7.0+90894+66578cbb ELSA-2026-20596, ELSA-2026-18030
Oracle Linux 9 rubygem-rake 13.0.3-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-rbs 1.4.0-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-rdoc 6.3.4.1-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-rexml 3.2.5-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-rss 0.2.9-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-test-unit 3.3.7-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygem-typeprof 0.15.2-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 9 rubygems +1 3.2.33-166.el9_7 ELSA-2026-20596, ELSA-2026-18039, ELSA-2026-18030
Oracle Linux 8 ruby +5 3.3.10-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-abrt +1 0.4.0-1.module+el8.10.0+90287+d51aa4ed ELSA-2026-20614
Oracle Linux 8 rubygem-bigdecimal 3.1.5-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-bundler 2.5.22-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-io-console 0.7.1-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-irb 1.13.1-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-json 2.7.2-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-minitest 5.20.0-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-mysql2 +1 0.5.5-1.module+el8.10.0+90287+d51aa4ed ELSA-2026-20614
Oracle Linux 8 rubygem-pg +1 1.5.4-1.module+el8.10.0+90287+d51aa4ed ELSA-2026-20614
Oracle Linux 8 rubygem-power_assert 2.0.3-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-psych 5.1.2-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-racc 1.7.3-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-rake 13.1.0-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-rbs 3.4.0-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-rdoc 6.6.3.1-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-rexml 3.4.4-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-rss 0.3.1-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-test-unit 3.6.1-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygem-typeprof 0.21.9-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614
Oracle Linux 8 rubygems +1 3.5.22-6.module+el8.10.0+90896+16c7234c ELSA-2026-20614

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling jruby-10.1 10.1.1.0-r0 —
Wolfi rolling jruby-9.4 9.4.15.0-r0 —
Wolfi rolling logstash-9.3 +1 9.3.4-r2 —
Wolfi rolling ruby-3.2 +1 No fix yet —
Wolfi rolling ruby-3.3 3.3.12-r0 —
Wolfi rolling ruby-3.4 3.4.10-r0 —
Wolfi rolling ruby-4.0 4.0.3-r0 —
Wolfi rolling ruby3.2-rails-8.1 +1 8.1.3-r3 —
Wolfi rolling ruby3.3-rails-8.1 +1 8.1.3-r4 —

Affected packages

EcosystemPackageAffectedFixedRecord
RubyGems erb < 4.0.3.1 4.0.3.1 GHSA-q339-8rmv-2mhv
RubyGems erb >= 4.0.4, < 4.0.4.1 4.0.4.1 GHSA-q339-8rmv-2mhv
RubyGems erb >= 5.0.0, < 6.0.1.1 6.0.1.1 GHSA-q339-8rmv-2mhv
RubyGems erb >= 6.0.2, < 6.0.4 6.0.4 GHSA-q339-8rmv-2mhv

Advisories 39

References