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: 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.
Fixed packages 36
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | ruby | 2.5.9-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | ruby-devel | 2.5.9-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | ruby-doc | 2.5.9-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | ruby-irb | 2.5.9-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | ruby-libs | 2.5.9-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-abrt | 0.3.0-4.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-abrt-doc | 0.3.0-4.module_el8.10.0+3871+342e2c2f |
| AlmaLinux · 8 | rubygem-bigdecimal | 1.3.4-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-bson | 4.3.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-bson | 4.3.0-2.module_el8.6.0+3170+4b08f9d4 |
| AlmaLinux · 8 | rubygem-bson | 4.3.0-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux · 8 | rubygem-bson-doc | 4.3.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-bundler | 1.16.1-5.module_el8.10.0+3991+5e651d4e |
| AlmaLinux · 8 | rubygem-bundler-doc | 1.16.1-5.module_el8.10.0+3991+5e651d4e |
| AlmaLinux · 8 | rubygem-did_you_mean | 1.2.0-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-io-console | 0.4.6-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-json | 2.1.0-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-minitest | 5.10.3-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-mongo | 2.5.1-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-mongo-doc | 2.5.1-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-mysql2 | 0.4.10-4.module_el8.5.0+259+8cec6917 |
| AlmaLinux · 8 | rubygem-mysql2 | 0.4.10-4.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-mysql2 | 0.4.10-4.module_el8.6.0+3170+4b08f9d4 |
| AlmaLinux · 8 | rubygem-mysql2-doc | 0.4.10-4.module_el8.5.0+2625+ec418553 |
| AlmaLinux · 8 | rubygem-net-telnet | 0.1.1-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-openssl | 2.1.2-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-pg | 1.0.0-3.module_el8.9.0+3635+c6f99506 |
| AlmaLinux · 8 | rubygem-pg-doc | 1.0.0-3.module_el8.9.0+3635+c6f99506 |
| AlmaLinux · 8 | rubygem-power_assert | 1.1.1-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-psych | 3.0.2-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-rake | 12.3.3-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-rdoc | 6.0.1.1-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-test-unit | 3.2.7-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygem-xmlrpc | 0.3.0-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygems | 2.7.6.3-115.module_el8.10.0+4212+150d00eb |
| AlmaLinux · 8 | rubygems-devel | 2.7.6.3-115.module_el8.10.0+4212+150d00eb |
Vulnerabilities 2
-
High 7.6
net-imap vulnerable to STARTTLS stripping via invalid response timing
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issu…
-
Medium 5.8
net-imap: Command Injection via unvalidated Symbol inputs
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.4.24, 0.5.14, and 0.6.4, symbol arguments to commands are vulnerable to a CRLF Injection / IMAP Command injection via Symbol arguments passed to IMA…