RLSA-2026:50778

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: Rebase to the latest Ruby 3.3 release [rhel-10.2.z] (JIRA:Rocky Linux-211300)

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-2026:50778",
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/"
}

References

Credits

- Rocky Enterprise Software Foundation
- Red Hat

Affected packages

Rocky Linux:10 / ruby

Package

Name: ruby
Purl: pkg:rpm/rocky-linux/ruby?distro=rocky-linux-10&epoch=0

Affected ranges

Type

ECOSYSTEM

Events

Introduced

Fixed

0:3.3.12-14.el10_2

Database specific

Show details

{
    "yum_repository": "AppStream"
}

Database specific

source

"https://storage.googleapis.com/resf-osv-data/RLSA-2026:50778.json"