RHSA-2026:21378

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Source
https://access.redhat.com/errata/RHSA-2026:21378
Import Source
https://security.access.redhat.com/data/osv/RHSA-2026:21378.json
JSON Data
https://api.osv.dev/v1/vulns/RHSA-2026:21378
Upstream
  • CVE-2026-8388
  • CVE-2026-8391
  • CVE-2026-8401
  • CVE-2026-8946
  • CVE-2026-8947
  • CVE-2026-8950
  • CVE-2026-8953
  • CVE-2026-8954
  • CVE-2026-8955
  • CVE-2026-8956
  • CVE-2026-8957
  • CVE-2026-8958
  • CVE-2026-8961
  • CVE-2026-8962
  • CVE-2026-8968
  • CVE-2026-8970
  • CVE-2026-8974
  • CVE-2026-8975
Published
2026-05-28T10:07:43Z
Modified
2026-06-03T10:19:41Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Red Hat Security Advisory: firefox security update
Details
References

Affected packages

Red Hat:enterprise_linux:9::appstream
firefox

Package

Name
firefox
Purl
pkg:rpm/redhat/firefox

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:140.11.0-1.el9_8

Database specific

source 
"https://security.access.redhat.com/data/osv/RHSA-2026:21378.json"
firefox-debuginfo

Package

Name
firefox-debuginfo
Purl
pkg:rpm/redhat/firefox-debuginfo

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:140.11.0-1.el9_8

Database specific

source 
"https://security.access.redhat.com/data/osv/RHSA-2026:21378.json"
firefox-debugsource

Package

Name
firefox-debugsource
Purl
pkg:rpm/redhat/firefox-debugsource

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:140.11.0-1.el9_8

Database specific

source 
"https://security.access.redhat.com/data/osv/RHSA-2026:21378.json"
firefox-x11

Package

Name
firefox-x11
Purl
pkg:rpm/redhat/firefox-x11

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:140.11.0-1.el9_8

Database specific

source 
"https://security.access.redhat.com/data/osv/RHSA-2026:21378.json"