RHSA-2026:54393: Important: ruby:3.3 security update

Published Aug 12, 2026
·
Updated

Important: ruby:3.3 security update

Other sources

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): net-imap: Net::IMAP: Arbitrary IMAP command injection due to improper input validation (CVE-2026-47242) 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.

— Red Hat

Affected Software

128 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
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redhat/rubygem-racc<1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
redhat/rubygem-racc-debuginfo<1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
redhat/rubygem-rbs<3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
redhat/rubygem-rbs-debuginfo<3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
redhat/rubygem-mysql2-debuginfo<0.5.5-1.module+el9.4.0+21222+faeeed2f
0.5.5-1.module+el9.4.0+21222+faeeed2f
redhat/rubygem-mysql2-debugsource<0.5.5-1.module+el9.4.0+21222+faeeed2f
0.5.5-1.module+el9.4.0+21222+faeeed2f
redhat/rubygem-pg-debuginfo<1.5.4-1.module+el9.4.0+21222+faeeed2f
1.5.4-1.module+el9.4.0+21222+faeeed2f
redhat/rubygem-pg-debugsource<1.5.4-1.module+el9.4.0+21222+faeeed2f
1.5.4-1.module+el9.4.0+21222+faeeed2f

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/ruby to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  2. Upgrade

    Upgrade redhat/rubygem-mysql2 to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f
  3. Upgrade

    Upgrade redhat/rubygem-pg to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f
  4. Upgrade

    Upgrade redhat/ruby-default-gems to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  5. Upgrade

    Upgrade redhat/ruby-doc to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  6. Upgrade

    Upgrade redhat/rubygem-bundler to a version that resolves this vulnerability.

    Fixed in 2.5.22-7.module+el9.4.0+24628+a370c2b9.2
  7. Upgrade

    Upgrade redhat/rubygem-irb to a version that resolves this vulnerability.

    Fixed in 1.13.1-7.module+el9.4.0+24628+a370c2b9.2
  8. Upgrade

    Upgrade redhat/rubygem-minitest to a version that resolves this vulnerability.

    Fixed in 5.20.0-7.module+el9.4.0+24628+a370c2b9.2
  9. Upgrade

    Upgrade redhat/rubygem-mysql2-doc to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f
  10. Upgrade

    Upgrade redhat/rubygem-pg-doc to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f
  11. Upgrade

    Upgrade redhat/rubygem-rake to a version that resolves this vulnerability.

    Fixed in 13.1.0-7.module+el9.4.0+24628+a370c2b9.2
  12. Upgrade

    Upgrade redhat/rubygem-rdoc to a version that resolves this vulnerability.

    Fixed in 6.6.3.1-7.module+el9.4.0+24628+a370c2b9.2
  13. Upgrade

    Upgrade redhat/rubygem-rexml to a version that resolves this vulnerability.

    Fixed in 3.4.4-7.module+el9.4.0+24628+a370c2b9.2
  14. Upgrade

    Upgrade redhat/rubygem-rss to a version that resolves this vulnerability.

    Fixed in 0.3.1-7.module+el9.4.0+24628+a370c2b9.2
  15. Upgrade

    Upgrade redhat/rubygem-test-unit to a version that resolves this vulnerability.

    Fixed in 3.6.1-7.module+el9.4.0+24628+a370c2b9.2
  16. Upgrade

    Upgrade redhat/rubygem-typeprof to a version that resolves this vulnerability.

    Fixed in 0.21.9-7.module+el9.4.0+24628+a370c2b9.2
  17. Upgrade

    Upgrade redhat/rubygems to a version that resolves this vulnerability.

    Fixed in 3.5.22-7.module+el9.4.0+24628+a370c2b9.2
  18. Upgrade

    Upgrade redhat/rubygems-devel to a version that resolves this vulnerability.

    Fixed in 3.5.22-7.module+el9.4.0+24628+a370c2b9.2
  19. Upgrade

    Upgrade redhat/ruby-bundled-gems to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  20. Upgrade

    Upgrade redhat/ruby-bundled-gems-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  21. Upgrade

    Upgrade redhat/ruby-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  22. Upgrade

    Upgrade redhat/ruby-debugsource to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  23. Upgrade

    Upgrade redhat/ruby-devel to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  24. Upgrade

    Upgrade redhat/ruby-libs to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  25. Upgrade

    Upgrade redhat/ruby-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2
  26. Upgrade

    Upgrade redhat/rubygem-bigdecimal to a version that resolves this vulnerability.

    Fixed in 3.1.5-7.module+el9.4.0+24628+a370c2b9.2
  27. Upgrade

    Upgrade redhat/rubygem-bigdecimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-7.module+el9.4.0+24628+a370c2b9.2
  28. Upgrade

    Upgrade redhat/rubygem-io-console to a version that resolves this vulnerability.

    Fixed in 0.7.1-7.module+el9.4.0+24628+a370c2b9.2
  29. Upgrade

    Upgrade redhat/rubygem-io-console-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.1-7.module+el9.4.0+24628+a370c2b9.2
  30. Upgrade

    Upgrade redhat/rubygem-json to a version that resolves this vulnerability.

    Fixed in 2.7.2-7.module+el9.4.0+24628+a370c2b9.2
  31. Upgrade

    Upgrade redhat/rubygem-json-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.7.2-7.module+el9.4.0+24628+a370c2b9.2
  32. Upgrade

    Upgrade redhat/rubygem-mysql2-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f
  33. Upgrade

    Upgrade redhat/rubygem-mysql2-debugsource to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f
  34. Upgrade

    Upgrade redhat/rubygem-pg-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f
  35. Upgrade

    Upgrade redhat/rubygem-pg-debugsource to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f
  36. Upgrade

    Upgrade redhat/rubygem-psych to a version that resolves this vulnerability.

    Fixed in 5.1.2-7.module+el9.4.0+24628+a370c2b9.2
  37. Upgrade

    Upgrade redhat/rubygem-psych-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.1.2-7.module+el9.4.0+24628+a370c2b9.2
  38. Upgrade

    Upgrade redhat/rubygem-racc to a version that resolves this vulnerability.

    Fixed in 1.7.3-7.module+el9.4.0+24628+a370c2b9.2
  39. Upgrade

    Upgrade redhat/rubygem-racc-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.7.3-7.module+el9.4.0+24628+a370c2b9.2
  40. Upgrade

    Upgrade redhat/rubygem-rbs to a version that resolves this vulnerability.

    Fixed in 3.4.0-7.module+el9.4.0+24628+a370c2b9.2
  41. Upgrade

    Upgrade redhat/rubygem-rbs-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.0-7.module+el9.4.0+24628+a370c2b9.2
  42. Upgrade

    Upgrade redhat/ruby to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  43. Upgrade

    Upgrade redhat/ruby-bundled-gems to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  44. Upgrade

    Upgrade redhat/ruby-bundled-gems-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  45. Upgrade

    Upgrade redhat/ruby-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  46. Upgrade

    Upgrade redhat/ruby-debugsource to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  47. Upgrade

    Upgrade redhat/ruby-devel to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  48. Upgrade

    Upgrade redhat/ruby-libs to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  49. Upgrade

    Upgrade redhat/ruby-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.3.12-7.module+el9.4.0+24628+a370c2b9.2.aa
  50. Upgrade

    Upgrade redhat/rubygem-bigdecimal to a version that resolves this vulnerability.

    Fixed in 3.1.5-7.module+el9.4.0+24628+a370c2b9.2.aa
  51. Upgrade

    Upgrade redhat/rubygem-bigdecimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.1.5-7.module+el9.4.0+24628+a370c2b9.2.aa
  52. Upgrade

    Upgrade redhat/rubygem-io-console to a version that resolves this vulnerability.

    Fixed in 0.7.1-7.module+el9.4.0+24628+a370c2b9.2.aa
  53. Upgrade

    Upgrade redhat/rubygem-io-console-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.1-7.module+el9.4.0+24628+a370c2b9.2.aa
  54. Upgrade

    Upgrade redhat/rubygem-json to a version that resolves this vulnerability.

    Fixed in 2.7.2-7.module+el9.4.0+24628+a370c2b9.2.aa
  55. Upgrade

    Upgrade redhat/rubygem-json-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.7.2-7.module+el9.4.0+24628+a370c2b9.2.aa
  56. Upgrade

    Upgrade redhat/rubygem-mysql2 to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f.aa
  57. Upgrade

    Upgrade redhat/rubygem-mysql2-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f.aa
  58. Upgrade

    Upgrade redhat/rubygem-mysql2-debugsource to a version that resolves this vulnerability.

    Fixed in 0.5.5-1.module+el9.4.0+21222+faeeed2f.aa
  59. Upgrade

    Upgrade redhat/rubygem-pg to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f.aa
  60. Upgrade

    Upgrade redhat/rubygem-pg-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f.aa
  61. Upgrade

    Upgrade redhat/rubygem-pg-debugsource to a version that resolves this vulnerability.

    Fixed in 1.5.4-1.module+el9.4.0+21222+faeeed2f.aa
  62. Upgrade

    Upgrade redhat/rubygem-psych to a version that resolves this vulnerability.

    Fixed in 5.1.2-7.module+el9.4.0+24628+a370c2b9.2.aa
  63. Upgrade

    Upgrade redhat/rubygem-psych-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.1.2-7.module+el9.4.0+24628+a370c2b9.2.aa
  64. Upgrade

    Upgrade redhat/rubygem-racc to a version that resolves this vulnerability.

    Fixed in 1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
  65. Upgrade

    Upgrade redhat/rubygem-racc-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.7.3-7.module+el9.4.0+24628+a370c2b9.2.aa
  66. Upgrade

    Upgrade redhat/rubygem-rbs to a version that resolves this vulnerability.

    Fixed in 3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
  67. Upgrade

    Upgrade redhat/rubygem-rbs-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.0-7.module+el9.4.0+24628+a370c2b9.2.aa
  68. Upgrade

    Upgrade ruby:3.3 to a version that resolves this vulnerability.

    Fixed in 3.3

Event History

Aug 12, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·02:32 PM
Data Sourced
via Red Hat·02:32 PM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:54393?

The severity of RHSA-2026:54393 is categorized as high, with a scoring of 7.

2

How do I fix RHSA-2026:54393?

To fix RHSA-2026:54393, update the affected Ruby packages to the latest version provided by Red Hat.

3

What vulnerability does RHSA-2026:54393 address?

RHSA-2026:54393 addresses an arbitrary IMAP command injection vulnerability due to improper input validation.

4

Which software is affected by RHSA-2026:54393?

The affected software includes redhat/ruby, redhat/rubygem-mysql2, redhat/rubygem-pg, and others related to Ruby.

5

What security issues are fixed in RHSA-2026:54393?

The security fix in RHSA-2026:54393 resolves issues related to input validation and command injection vulnerabilities in Net::IMAP.

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