AlmaLinux alert ALSA-2026:33515 (ruby:3.3)

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[Announce]  [Security Advisory] ALSA-2026:33515: ruby:3.3 security update (Important)
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Fri, 03 Jul 2026 17:03:52 +0000
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<0100019f28efcf61-15eaa79a-82f3-4a13-a421-51f17d89bc0e-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 8
Type: Security
Severity: Important
Release date: 2026-07-03

Summary:

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):  

  * ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses (CVE-2026-42245)
  * ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via Symbol Arguments (CVE-2026-42258)
  * net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS
(CVE-2026-42246)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/8/ALSA-2026-33515.html

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AlmaLinux Team
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