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RHSA-2026:50773
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Source
https://access.redhat.com/errata/RHSA-2026:50773
Import Source
https://security.access.redhat.com/data/osv/RHSA-2026:50773.json
JSON Data
https://api.osv.dev/v1/vulns/RHSA-2026:50773
Upstream
CVE-2026-27820
CVE-2026-42256
CVE-2026-42257
CVE-2026-47240
CVE-2026-47241
CVE-2026-47242
Published
2026-08-27T10:14:06Z
Modified
2026-08-28T10:09:01Z
Severity
7.3 (High)
CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS Calculator
Summary
Red Hat Security Advisory: ruby4.0 security, bug fix, and enhancement update
Details
References
https://access.redhat.com/errata/RHSA-2026:50773
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2459002
https://bugzilla.redhat.com/show_bug.cgi?id=2468494
https://bugzilla.redhat.com/show_bug.cgi?id=2468500
https://bugzilla.redhat.com/show_bug.cgi?id=2491519
https://bugzilla.redhat.com/show_bug.cgi?id=2491522
https://bugzilla.redhat.com/show_bug.cgi?id=2491523
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_50773.json
https://access.redhat.com/security/cve/CVE-2026-27820
https://www.cve.org/CVERecord?id=CVE-2026-27820
https://nvd.nist.gov/vuln/detail/CVE-2026-27820
https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w
https://hackerone.com/reports/3467067
https://access.redhat.com/security/cve/CVE-2026-42256
https://www.cve.org/CVERecord?id=CVE-2026-42256
https://nvd.nist.gov/vuln/detail/CVE-2026-42256
https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612
https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4
https://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758
https://github.com/ruby/net-imap/releases/tag/v0.4.24
https://github.com/ruby/net-imap/releases/tag/v0.5.14
https://github.com/ruby/net-imap/releases/tag/v0.6.4
https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7
https://access.redhat.com/security/cve/CVE-2026-42257
https://www.cve.org/CVERecord?id=CVE-2026-42257
https://nvd.nist.gov/vuln/detail/CVE-2026-42257
https://github.com/ruby/net-imap/security/advisories/GHSA-hm49-wcqc-g2xg
https://access.redhat.com/security/cve/CVE-2026-47240
https://www.cve.org/CVERecord?id=CVE-2026-47240
https://nvd.nist.gov/vuln/detail/CVE-2026-47240
https://github.com/ruby/net-imap/security/advisories/GHSA-8p34-64r3-mwg8
https://access.redhat.com/security/cve/CVE-2026-47241
https://www.cve.org/CVERecord?id=CVE-2026-47241
https://nvd.nist.gov/vuln/detail/CVE-2026-47241
https://github.com/ruby/net-imap/security/advisories/GHSA-c4fp-cxrr-mj66
https://access.redhat.com/security/cve/CVE-2026-47242
https://www.cve.org/CVERecord?id=CVE-2026-47242
https://nvd.nist.gov/vuln/detail/CVE-2026-47242
https://github.com/ruby/net-imap/security/advisories/GHSA-46q3-7gv7-qmgg
Affected packages
Red Hat:enterprise_linux:10.2
ruby4.0
Package
Name
ruby4.0
Purl
pkg:rpm/redhat/ruby4.0
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.0.6-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-debuginfo
Package
Name
ruby4.0-debuginfo
Purl
pkg:rpm/redhat/ruby4.0-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.0.6-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-debugsource
Package
Name
ruby4.0-debugsource
Purl
pkg:rpm/redhat/ruby4.0-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.0.6-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-devel
Package
Name
ruby4.0-devel
Purl
pkg:rpm/redhat/ruby4.0-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.0.6-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-rubygem-mysql2
Package
Name
ruby4.0-rubygem-mysql2
Purl
pkg:rpm/redhat/ruby4.0-rubygem-mysql2
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:0.5.7-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-rubygem-mysql2-debuginfo
Package
Name
ruby4.0-rubygem-mysql2-debuginfo
Purl
pkg:rpm/redhat/ruby4.0-rubygem-mysql2-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:0.5.7-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-rubygem-pg
Package
Name
ruby4.0-rubygem-pg
Purl
pkg:rpm/redhat/ruby4.0-rubygem-pg
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.6.3-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-rubygem-pg-debuginfo
Package
Name
ruby4.0-rubygem-pg-debuginfo
Purl
pkg:rpm/redhat/ruby4.0-rubygem-pg-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.6.3-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
ruby4.0-doc
Package
Name
ruby4.0-doc
Purl
pkg:rpm/redhat/ruby4.0-doc
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.0.6-36.el10_2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:50773.json"
RHSA-2026:50773 - OSV