[ALSA-2026:50827] Important: ruby:4.0 security, bug fix, and enhancement update
Type:
security
Severity:
important
Release date:
2026-09-01
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): * zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader (CVE-2026-27820) * net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF sequences in unvalidated input (CVE-2026-42257) * ruby/net-imap: ruby: Net::IMAP: Denial of Service via large iteration count in SCRAM authentication (CVE-2026-42256) * net-imap: Net::IMAP: Command injection via non-synchronizing literals (CVE-2026-47240) * net-imap: Net::IMAP: Arbitrary IMAP command injection due to improper input validation (CVE-2026-47242) * net-imap: rubygem-net-imap: Net::IMAP: Denial of Service via malformed command input (CVE-2026-47241) Bug Fix(es) and Enhancement(s): * ruby:4.0/ruby: Rebase to the latest Ruby 4.0 release [almalinux-9.8.z] (JIRA:AlmaLinux-211301) 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.
References:
Updated packages listed below:
Architecture Package Checksum
aarch64 rubygem-rbs-3.10.0-34.module_el9.8.0+289+5a070f48.aarch64.rpm 0b8b4fa460a25b146047406e7224e98d04489d844ea3202c65509575b2d92ed5
aarch64 ruby-libs-4.0.6-34.module_el9.8.0+289+5a070f48.aarch64.rpm 0cd44f296b701890a648625f5576559925033a08662e0bc288594384e49ab385
aarch64 rubygem-psych-5.3.1-34.module_el9.8.0+289+5a070f48.aarch64.rpm 231460f8db04903760cb2e15439fd70930adbcc009ace25b6d83f4be9bdc820e
aarch64 ruby-devel-4.0.6-34.module_el9.8.0+289+5a070f48.aarch64.rpm 28f0141b435176264542de232bb61996d13855e1781caa084da0dc08e37dc215
aarch64 rubygem-json-2.18.0-34.module_el9.8.0+289+5a070f48.aarch64.rpm 5f644c552651a53e77a90b23e3b040b4310bec2ebff882b9c6e238ec108a4b9c
aarch64 ruby-4.0.6-34.module_el9.8.0+289+5a070f48.aarch64.rpm 638aa83ae07e873832e32e78a55df62486df97e57d16cb3ce0eb782daae5c425
aarch64 rubygem-mysql2-0.5.7-1.module_el9.8.0+232+50f6dd36.aarch64.rpm 6f8de832b364a5b63b09be48e0410dc5f130d9e2c537a23de8b3855643431d0c
aarch64 rubygem-racc-1.8.1-34.module_el9.8.0+289+5a070f48.aarch64.rpm a23f60e4734ccee4a22e50622a4a9988c941dd3b24d1e7b0edb791608094a066
aarch64 ruby-bundled-gems-4.0.6-34.module_el9.8.0+289+5a070f48.aarch64.rpm bdaf75b78313661669d2ef02ef6a06d0b0091f727a887fc6ae4efc6fe96120ca
aarch64 rubygem-bigdecimal-4.0.1-34.module_el9.8.0+289+5a070f48.aarch64.rpm d7cc8a7499f99c664af7c850bd25274444a100a2c809d8fdab195ef41e84b2c0
aarch64 rubygem-io-console-0.8.2-34.module_el9.8.0+289+5a070f48.aarch64.rpm df4ae6f3b48cfab8ece2478d8bdda325d4d408f3526f1dfeb4aed48c754c256d
aarch64 rubygem-pg-1.6.3-1.module_el9.8.0+232+50f6dd36.aarch64.rpm f5d039b2b6a4efbe9c980d8e2e1bea3ffbc263b8f7021ac3f35c603776fb979c
i686 ruby-bundled-gems-4.0.6-34.module_el9.8.0+289+5a070f48.i686.rpm 0cc7cf777abe79b0dcce4bf43030f18d48b6f9573ad8f00a0f15ba748314d826
i686 ruby-4.0.6-34.module_el9.8.0+289+5a070f48.i686.rpm 1689e660a0e04524f113828846aef172b99fee2653f324c11afad2cba6f8fdf2
i686 ruby-libs-4.0.6-34.module_el9.8.0+289+5a070f48.i686.rpm 1f89748fb4527d03b29ae3bec0a415ecfa0f12901b0c5f83a57c929f02df0cb5
i686 rubygem-racc-1.8.1-34.module_el9.8.0+289+5a070f48.i686.rpm 4e9886e3bd9adcff306fe4c6145f38e9ad083f5fa7097dbdd41b1fbeb3458267
i686 ruby-devel-4.0.6-34.module_el9.8.0+289+5a070f48.i686.rpm 7f03d4d2a8ee0ff45462308726118bb806cb4b3c1fea8e2c1ac374245f0c625f
i686 rubygem-rbs-3.10.0-34.module_el9.8.0+289+5a070f48.i686.rpm c82b499eb6c34850aa8cf1fb1a9aad57d8c76ba210012c8c172da81a5d7e5caa
i686 rubygem-psych-5.3.1-34.module_el9.8.0+289+5a070f48.i686.rpm d4e582639d3a4af2ef34bc65424f881a6000c78955a30095eff884889fdead2a
i686 rubygem-io-console-0.8.2-34.module_el9.8.0+289+5a070f48.i686.rpm d929156c351a6c6c2be076817c51896ae3a47cc20aff94b842414abb3b3eedf1
i686 rubygem-json-2.18.0-34.module_el9.8.0+289+5a070f48.i686.rpm e1d5ad26c355cca1461fd62c5b0592fa91b258a78e6c09b16237b8c974af5812
i686 rubygem-bigdecimal-4.0.1-34.module_el9.8.0+289+5a070f48.i686.rpm e9ac987c4a8c35f1566f545dc1d47723a5f2196935ec09ae3c6e8ad010da2904
noarch rubygem-pg-doc-1.6.3-1.module_el9.8.0+232+50f6dd36.noarch.rpm 012587b1454988d3ae9e2df6f066e9a9582859f741daa26cc97f6ce56f7cc40d
noarch rubygem-rdoc-7.0.4-34.module_el9.8.0+289+5a070f48.noarch.rpm 2b33fa77783cc93de8c0883faa6892329f442300d0cbf5e82a6125b00b71fca4
noarch rubygem-rexml-3.4.4-34.module_el9.8.0+289+5a070f48.noarch.rpm 4edee87df2da657900eb98f07642c3d83a1037438ed3582662ca71dc5c3b568f
noarch rubygems-devel-4.0.16-34.module_el9.8.0+289+5a070f48.noarch.rpm 5ff0a58b9db973f8f827485142a5c70c50eaf99fbcb947c16c74638d7a2a9b29
noarch ruby-default-gems-4.0.6-34.module_el9.8.0+289+5a070f48.noarch.rpm 6474d9bf6e42880f15ad8265fb7fae51ff54f75a245dcf6d39eb4632f7f81838
noarch ruby-doc-4.0.6-34.module_el9.8.0+289+5a070f48.noarch.rpm 7383a71f0ebaddfc76ab3a8b8751b28d27f749dd3c97ed8a0f8382edd75adb4d
noarch rubygem-irb-1.16.0-34.module_el9.8.0+289+5a070f48.noarch.rpm 8d1764e23f29a1b6728b3e33ab74c0d1ba702c7be0d9fa862621aa3cb76d4d51
noarch rubygem-mysql2-doc-0.5.7-1.module_el9.8.0+232+50f6dd36.noarch.rpm 97e11c128bce3071fdab6ecdaf0cc24053f436b72c10921807cbd89f4b2ff2d2
noarch rubygem-test-unit-3.7.5-34.module_el9.8.0+289+5a070f48.noarch.rpm 98dfab43af99dcb55d9ad636a9e00e9f441f54b539261d335f77a250c3b87944
noarch rubygem-rss-0.3.2-34.module_el9.8.0+289+5a070f48.noarch.rpm 9d8f32cc4b8324acfc9b91a11957b4315f2194772e4af2c1ac254d3f1e96e131
noarch rubygem-rake-13.3.1-34.module_el9.8.0+289+5a070f48.noarch.rpm a0e07a6db4215d2166f1a1cf135e0ed46b6acf714d5d940a78e75de5f0311ceb
noarch rubygem-bundler-4.0.16-34.module_el9.8.0+289+5a070f48.noarch.rpm b37144bcb7e8ef9ab689609c444876b235350c49b15794514f2505690c5ab572
noarch rubygem-power_assert-3.0.1-34.module_el9.8.0+289+5a070f48.noarch.rpm b44d02d06a9abfc05496a212f9445555603fb80658dc9fcae5578d9f84ce27b5
noarch rubygems-4.0.16-34.module_el9.8.0+289+5a070f48.noarch.rpm c0ab99a9946b709580b35c70248b9e15c7e5f1c9a8dc0f4cd163296f45a9b4b5
noarch rubygem-typeprof-0.31.1-34.module_el9.8.0+289+5a070f48.noarch.rpm d6aa930ee8efdbad15e5c5e89ef82a900530f8669c79bf2d4de1ea56ed703041
noarch rubygem-minitest-6.0.0-34.module_el9.8.0+289+5a070f48.noarch.rpm f92af6d127f8ccb7327da1285fe8625679ce8a870dccb7f9a67d298b37b20d26
ppc64le rubygem-io-console-0.8.2-34.module_el9.8.0+289+5a070f48.ppc64le.rpm 02969203d8ba4d0e904ad3b4e034b9d6eca7a577e91ffefb0aa4c4636e005f57
ppc64le rubygem-pg-1.6.3-1.module_el9.8.0+232+50f6dd36.ppc64le.rpm 0d9c6f56ef9793558d63333c75d84e0bee4fa674b4a90e3305b7b66ead6e6c16
ppc64le rubygem-json-2.18.0-34.module_el9.8.0+289+5a070f48.ppc64le.rpm 3cb875bc12e2520ddc332bbae69886b6dbbf59a1c4a1b61275eec7d653f7c3ef
ppc64le ruby-4.0.6-34.module_el9.8.0+289+5a070f48.ppc64le.rpm 4f6c00b5fedb89ee8947f72eba45aab1a8630c4390aac85667feab48f143d1ac
ppc64le ruby-bundled-gems-4.0.6-34.module_el9.8.0+289+5a070f48.ppc64le.rpm 7ce4a71936a811e3da5bf0da3f7757b83c04be9dce965ec6362860ed0b183d11
ppc64le rubygem-mysql2-0.5.7-1.module_el9.8.0+232+50f6dd36.ppc64le.rpm 886f13629742057525f6ea8e83363c449aad84d1cf44caff54bd66dd10141b14
ppc64le rubygem-rbs-3.10.0-34.module_el9.8.0+289+5a070f48.ppc64le.rpm a6817d4a953eea57f5f6d7f8755d458e1a717617884a2d0c2697364d60bd1a88
ppc64le ruby-devel-4.0.6-34.module_el9.8.0+289+5a070f48.ppc64le.rpm c6710cadb39497edd0736339b1351b4a9472f6e66042c86ebc4458913bebf468
ppc64le rubygem-racc-1.8.1-34.module_el9.8.0+289+5a070f48.ppc64le.rpm e017c4c675000e03bf7ee4122b24496f5b925d2ec8af954da0593c45884bbd10
ppc64le ruby-libs-4.0.6-34.module_el9.8.0+289+5a070f48.ppc64le.rpm eea4e25a879abe472657f69465f76e29c5fe033b641a72627f4e70db4d8f1292
ppc64le rubygem-psych-5.3.1-34.module_el9.8.0+289+5a070f48.ppc64le.rpm f16ee2b0787ef7f27e19fcaa6e7180b2da690043ced6b96d6aab45badb54e6a4
ppc64le rubygem-bigdecimal-4.0.1-34.module_el9.8.0+289+5a070f48.ppc64le.rpm fb9de35b6663b89760c7cc6defe01405cc5562256dd61dce2e0abdffdebbc709
s390x rubygem-json-2.18.0-34.module_el9.8.0+289+5a070f48.s390x.rpm 3ebd7b9fb6a0d6636cd26abbd9c425df6e0ea68be00cf35375f2faa378d343e1
s390x ruby-libs-4.0.6-34.module_el9.8.0+289+5a070f48.s390x.rpm 46944051e319cd954e36dee8e059f8d2ce3c7cc2d4c1f4801fa68793a2be2310
s390x rubygem-pg-1.6.3-1.module_el9.8.0+232+50f6dd36.s390x.rpm 5a3274b260c9f148a2d53963874a7074a6eb753d8de5561715f81aa190b751ae
s390x ruby-4.0.6-34.module_el9.8.0+289+5a070f48.s390x.rpm 5d6a05148f22e2208fb85f4f5eb123d8ed6fa889363b203bb1f9c1e73fa4050f
s390x rubygem-mysql2-0.5.7-1.module_el9.8.0+232+50f6dd36.s390x.rpm 700ff63225b94b696ac533940dc41391e7462b01042b665bb6817ae92d805d39
s390x ruby-bundled-gems-4.0.6-34.module_el9.8.0+289+5a070f48.s390x.rpm 76522c635fff64c477b8c76e2884394315e09dab0e7ae44f9078f803e4e27d23
s390x ruby-devel-4.0.6-34.module_el9.8.0+289+5a070f48.s390x.rpm 81cdaf405e2e29ccc9b4b71606e3e5ba47db76193156f3c94d384c46ffbe21ef
s390x rubygem-racc-1.8.1-34.module_el9.8.0+289+5a070f48.s390x.rpm 87c3171e85f7dd4d58425f9802ce3ddd925175de1476436cb627ac9fc2f3aa6e
s390x rubygem-io-console-0.8.2-34.module_el9.8.0+289+5a070f48.s390x.rpm ae18c7978969232238d61ee53febc49fb5a2e927cc07c2a02eb2e960723f3c84
s390x rubygem-bigdecimal-4.0.1-34.module_el9.8.0+289+5a070f48.s390x.rpm bae1d86c25b86b2eb8eaed00f29f7d447649aae87b3a2e7dddee4a3faa0ba002
s390x rubygem-rbs-3.10.0-34.module_el9.8.0+289+5a070f48.s390x.rpm c0bff7d3606e247460b7974b50be2db76bd7bd471026c011c8784ed36730b634
s390x rubygem-psych-5.3.1-34.module_el9.8.0+289+5a070f48.s390x.rpm c2b749db6ba7dd8c7be54d04ff807c8a705a6b3f8ff70e25ca56f634d79eb9fa
x86_64 ruby-devel-4.0.6-34.module_el9.8.0+289+5a070f48.x86_64.rpm 2a9bf520707b16e54076eff99e81c0971fdcead0c891a16100fdd71049eaa7d0
x86_64 ruby-bundled-gems-4.0.6-34.module_el9.8.0+289+5a070f48.x86_64.rpm 37d7e3b60ef2de4052c5ea16bec4db2518e40ff6aabdd5cf48678f4eb3672b72
x86_64 ruby-libs-4.0.6-34.module_el9.8.0+289+5a070f48.x86_64.rpm 57d7a51556fde844b0b6c604560db08ea04a34d543cb7d5b846918910624f2cf
x86_64 rubygem-racc-1.8.1-34.module_el9.8.0+289+5a070f48.x86_64.rpm 5ecd8c1ef0d793d9465372898db7479bd46cfe6ea4c332a5edb73bfc1dab8a04
x86_64 rubygem-rbs-3.10.0-34.module_el9.8.0+289+5a070f48.x86_64.rpm 5ee48bbf3ae1ccc1fa970a3e087a69cdaa1e461d2902dd53ad050a0f62e9c6d0
x86_64 rubygem-pg-1.6.3-1.module_el9.8.0+232+50f6dd36.x86_64.rpm 7f9032a32d75361237af186ee34fe7c85a8f586e859c8c4e02d26320b47d49d9
x86_64 rubygem-json-2.18.0-34.module_el9.8.0+289+5a070f48.x86_64.rpm 858e1bd155e41c047090514fcf920c0ad28ef3988809fce1534592c892eeab96
x86_64 rubygem-io-console-0.8.2-34.module_el9.8.0+289+5a070f48.x86_64.rpm 9ba44fa68896b4c48e04ddc5766b20d57c80e15c150e7359290184717da82986
x86_64 rubygem-mysql2-0.5.7-1.module_el9.8.0+232+50f6dd36.x86_64.rpm aee9080e7e16dcdac40af6fc172e19d5448a0f46c5f752183651f4660fa4e9cb
x86_64 rubygem-psych-5.3.1-34.module_el9.8.0+289+5a070f48.x86_64.rpm bbfc72cc3289174c80f18cdef1c215e815da6d86c3a80efecb73d925fab13150
x86_64 rubygem-bigdecimal-4.0.1-34.module_el9.8.0+289+5a070f48.x86_64.rpm eef7afdb9b18eac5b2b616bd6504340cbb6bcbb814d2612215c09763991dd9fa
x86_64 ruby-4.0.6-34.module_el9.8.0+289+5a070f48.x86_64.rpm f87a62ccada9b578606e3e6f61e162298e32442d586dfa1290f695896f5d504e
Notes:
This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.