An update for ruby is now available for openEuler-24.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3668 Final 1.0 1.0 2026-09-05 Initial 2026-09-05 2026-09-05 openEuler SA Tool V1.0 2026-09-05 ruby security update An update for ruby is now available for openEuler-24.03-LTS-SP1 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). Security Fix(es): Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing literals, it may still be possible to inject arbitrary IMAP commands inside non-synchronizing literals. A server without support for non-synchronizing literals may interpret the "+}\r\n" as the end of a malformed command line and respond with a tagged BAD. In that case, the contents of the literal will be interpreted as one or more new pipelined commands, allowing a CRLF command injection attack to succeed. This affects criteria for #search and #uid_search; search_keys for #sort, #thread, #uid_sort, and #uid_thread; and attr for #fetch and #uid_fetch. This vulnerability is fixed in 0.6.5 and 0.5.15.(CVE-2026-47240) Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will cause the first command to eventually fail, but also prevents it from returning until another command is sent (from another thread). That other command will not return until the connection is closed. This vulnerability is fixed in 0.6.5 and 0.5.15.(CVE-2026-47241) Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, when Net::IMAP#id is called with a hash argument, although the ID field value strings are correctly quoted (escaping quoted specials), they were not validated to prohibit CRLF sequences. While Net::IMAP#enable does process its arguments for aliases, it does not validate them as valid atoms (or as a list of valid atoms). The #to_s value is sent verbatim. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. This vulnerability is fixed in 0.6.5 and 0.5.15.(CVE-2026-47242) An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::Resource.get_class, Resolv::DNS::Resource::Generic.create, and Resolv::DNS::SvcParam::Generic.create generate a new class for each unknown DNS resource record (type, class) pair, or each unknown SvcParamKey, encountered while decoding a response. Each generated class was permanently registered both as a constant on Resource (or SvcParam::Generic) and as an entry in a class-lookup hash (ClassHash), and thus the class remained reachable through that constant after the response was discarded. Type and class are each 16-bit values, and thus an attacker controlling DNS responses (a spoofed response, or a malicious or hijacked upstream DNS server) has roughly 2^32 distinct (type, class) pairs to choose from. A single response of a few hundred kilobytes carrying tens of thousands of distinct unknown types permanently grows process memory by tens of megabytes; repeated responses accumulate without bound and are never reclaimed by garbage collection, because the constant keeps each class alive. Any code path that calls Resolv::DNS::Message.decode on attacker-influenced DNS responses is affected. resolv is a default gem, and thus this is reachable from a plain Ruby installation without any additional dependency.(CVE-2026-80212) An update for ruby is now available for openEuler-24.03-LTS-SP1. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High ruby https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3668 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-47240 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-47241 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-47242 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-80212 https://nvd.nist.gov/vuln/detail/CVE-2026-47240 https://nvd.nist.gov/vuln/detail/CVE-2026-47241 https://nvd.nist.gov/vuln/detail/CVE-2026-47242 https://nvd.nist.gov/vuln/detail/CVE-2026-80212 openEuler-24.03-LTS-SP1 ruby-3.2.2-159.oe2403sp1.aarch64.rpm ruby-bundled-gems-3.2.2-159.oe2403sp1.aarch64.rpm ruby-debuginfo-3.2.2-159.oe2403sp1.aarch64.rpm ruby-debugsource-3.2.2-159.oe2403sp1.aarch64.rpm ruby-devel-3.2.2-159.oe2403sp1.aarch64.rpm rubygem-bigdecimal-3.1.3-159.oe2403sp1.aarch64.rpm rubygem-io-console-0.6.0-159.oe2403sp1.aarch64.rpm rubygem-json-2.6.3-159.oe2403sp1.aarch64.rpm rubygem-openssl-3.1.0-159.oe2403sp1.aarch64.rpm rubygem-psych-5.0.1-159.oe2403sp1.aarch64.rpm rubygem-rbs-2.8.2-159.oe2403sp1.aarch64.rpm ruby-3.2.2-159.oe2403sp1.src.rpm ruby-3.2.2-159.oe2403sp1.x86_64.rpm ruby-bundled-gems-3.2.2-159.oe2403sp1.x86_64.rpm ruby-debuginfo-3.2.2-159.oe2403sp1.x86_64.rpm ruby-debugsource-3.2.2-159.oe2403sp1.x86_64.rpm ruby-devel-3.2.2-159.oe2403sp1.x86_64.rpm rubygem-bigdecimal-3.1.3-159.oe2403sp1.x86_64.rpm rubygem-io-console-0.6.0-159.oe2403sp1.x86_64.rpm rubygem-json-2.6.3-159.oe2403sp1.x86_64.rpm rubygem-openssl-3.1.0-159.oe2403sp1.x86_64.rpm rubygem-psych-5.0.1-159.oe2403sp1.x86_64.rpm rubygem-rbs-2.8.2-159.oe2403sp1.x86_64.rpm ruby-help-3.2.2-159.oe2403sp1.noarch.rpm ruby-irb-3.2.2-159.oe2403sp1.noarch.rpm rubygem-did_you_mean-1.6.3-159.oe2403sp1.noarch.rpm rubygem-minitest-5.16.3-159.oe2403sp1.noarch.rpm rubygem-rake-13.0.6-159.oe2403sp1.noarch.rpm rubygem-rdoc-6.5.0-159.oe2403sp1.noarch.rpm rubygem-rexml-3.2.5-159.oe2403sp1.noarch.rpm rubygem-rss-0.2.9-159.oe2403sp1.noarch.rpm rubygem-test-unit-3.5.7-159.oe2403sp1.noarch.rpm rubygem-typeprof-0.21.3-159.oe2403sp1.noarch.rpm rubygems-3.4.10-159.oe2403sp1.noarch.rpm rubygems-devel-3.4.10-159.oe2403sp1.noarch.rpm Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing literals, it may still be possible to inject arbitrary IMAP commands inside non-synchronizing literals. A server without support for non-synchronizing literals may interpret the "+}\r\n" as the end of a malformed command line and respond with a tagged BAD. In that case, the contents of the literal will be interpreted as one or more new pipelined commands, allowing a CRLF command injection attack to succeed. This affects criteria for #search and #uid_search; search_keys for #sort, #thread, #uid_sort, and #uid_thread; and attr for #fetch and #uid_fetch. This vulnerability is fixed in 0.6.5 and 0.5.15. 2026-09-05 CVE-2026-47240 openEuler-24.03-LTS-SP1 Medium 5.8 AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N ruby security update 2026-09-05 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3668 Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will cause the first command to eventually fail, but also prevents it from returning until another command is sent (from another thread). That other command will not return until the connection is closed. This vulnerability is fixed in 0.6.5 and 0.5.15. 2026-09-05 CVE-2026-47241 openEuler-24.03-LTS-SP1 Low 2.1 AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N ruby security update 2026-09-05 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3668 Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, when Net::IMAP#id is called with a hash argument, although the ID field value strings are correctly quoted (escaping quoted specials), they were not validated to prohibit CRLF sequences. While Net::IMAP#enable does process its arguments for aliases, it does not validate them as valid atoms (or as a list of valid atoms). The #to_s value is sent verbatim. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. This vulnerability is fixed in 0.6.5 and 0.5.15. 2026-09-05 CVE-2026-47242 openEuler-24.03-LTS-SP1 Medium 5.8 AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N ruby security update 2026-09-05 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3668 An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::Resource.get_class, Resolv::DNS::Resource::Generic.create, and Resolv::DNS::SvcParam::Generic.create generate a new class for each unknown DNS resource record (type, class) pair, or each unknown SvcParamKey, encountered while decoding a response. Each generated class was permanently registered both as a constant on Resource (or SvcParam::Generic) and as an entry in a class-lookup hash (ClassHash), and thus the class remained reachable through that constant after the response was discarded. Type and class are each 16-bit values, and thus an attacker controlling DNS responses (a spoofed response, or a malicious or hijacked upstream DNS server) has roughly 2^32 distinct (type, class) pairs to choose from. A single response of a few hundred kilobytes carrying tens of thousands of distinct unknown types permanently grows process memory by tens of megabytes; repeated responses accumulate without bound and are never reclaimed by garbage collection, because the constant keeps each class alive. Any code path that calls Resolv::DNS::Message.decode on attacker-influenced DNS responses is affected. resolv is a default gem, and thus this is reachable from a plain Ruby installation without any additional dependency. 2026-09-05 CVE-2026-80212 openEuler-24.03-LTS-SP1 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H ruby security update 2026-09-05 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3668