RLSA-2026:50827
- Source
- https://errata.rockylinux.org/RLSA-2026:50827
- Import Source
- https://storage.googleapis.com/resf-osv-data/RLSA-2026:50827.json
- JSON Data
- https://api.osv.dev/v1/vulns/RLSA-2026:50827
- Upstream
- Published
- 2026-08-27T00:04:44.346173Z
- Modified
- 2026-08-27T00:30:03.590529955Z
- Severity
-
- 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- Important: ruby:4.0 security, bug fix, and enhancement update
- Details
-
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 [rhel-9.8.z] (JIRA:Rocky Linux-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.
- Database specific
{ "source_advisory": "RHSA-2026:50827", "license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/" }- References
-
- https://errata.rockylinux.org/RLSA-2026:50827
- https://bugzilla.redhat.com/show_bug.cgi?id=2459002
- https://bugzilla.redhat.com/show_bug.cgi?id=2468494
- https://bugzilla.redhat.com/show_bug.cgi?id=2468500
- https://bugzilla.redhat.com/show_bug.cgi?id=2491519
- https://bugzilla.redhat.com/show_bug.cgi?id=2491522
- https://bugzilla.redhat.com/show_bug.cgi?id=2491523
- https://access.redhat.com/errata/RHSA-2026:50827
- Credits
-
-
- Rocky Enterprise Software Foundation
-
- Red Hat
-
Affected packages
Rocky Linux:9 / ruby
Package
- Name
- ruby
- Purl
- pkg:rpm/rocky-linux/ruby?distro=rocky-linux-9&epoch=0
Rocky Linux:9 / rubygem-mysql2
Package
- Name
- rubygem-mysql2
- Purl
- pkg:rpm/rocky-linux/rubygem-mysql2?distro=rocky-linux-9&epoch=0
Rocky Linux:9 / rubygem-pg
Package
- Name
- rubygem-pg
- Purl
- pkg:rpm/rocky-linux/rubygem-pg?distro=rocky-linux-9&epoch=0