RLSA-2026:33577: Security update for 2 packages

RLSA-2026:33577, released July 1, 2026, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.4

Base score, 0 to 10

Highest EPSS

0.0078

56th percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
rubygem-mysql2	rocky 9	0:0.5.7-1.module+el9.8.0+40094+ce01217c
rubygem-pg	rocky 9	0:1.6.3-1.module+el9.8.0+40094+ce01217c

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-42258	net-imap: Command Injection via unvalidated Symbol inputs	7.4	0.0078	None reported
High	CVE-2026-42245	ruby4.0: Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby	7.4	0.0041	None reported
High	CVE-2026-42246	net-imap vulnerable to STARTTLS stripping via invalid response timing	7.4	0.0031	None reported

Also fixes CVE-2026-42258

OPENSUSE-SU-2026:21878-1
ruby3.4 on opensuse-leap 16.0
SUSE-SU-2026:3090-1
ruby3.4 on sles 15.7
ALAS2023-2026-1807
ruby3.4, ruby3.4-bundled-gems, ruby3.4-bundled-gems-debuginfo and 31 more on amzn 2023
ELSA-2026-33540
ruby4.0, ruby4.0-devel, ruby4.0-doc and 2 more on ol 10
ELSA-2026-33565
ruby, ruby-bundled-gems, ruby-default-gems and 21 more on ol 10
RLSA-2026:33540
ruby4.0 on rocky 10
RLSA-2026:33565
ruby on rocky 10
ELSA-2026-33576
ruby, ruby-bundled-gems, ruby-default-gems and 25 more on ol 9

Vendor advisory

https://errata.rockylinux.org/RLSA-2026:33577

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