RHSA-2026:21380
- Source
- https://access.redhat.com/errata/RHSA-2026:21380
- Import Source
- https://security.access.redhat.com/data/osv/RHSA-2026:21380.json
- JSON Data
- https://api.osv.dev/v1/vulns/RHSA-2026:21380
- Upstream
- Published
- 2026-05-28T10:07:43Z
- Modified
- 2026-07-23T10:07:16Z
- 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
-
- https://access.redhat.com/errata/RHSA-2026:21380
- https://access.redhat.com/security/updates/classification/#important
- https://bugzilla.redhat.com/show_bug.cgi?id=2476469
- https://bugzilla.redhat.com/show_bug.cgi?id=2476475
- https://bugzilla.redhat.com/show_bug.cgi?id=2476492
- https://bugzilla.redhat.com/show_bug.cgi?id=2479839
- https://bugzilla.redhat.com/show_bug.cgi?id=2479840
- https://bugzilla.redhat.com/show_bug.cgi?id=2479842
- https://bugzilla.redhat.com/show_bug.cgi?id=2479846
- https://bugzilla.redhat.com/show_bug.cgi?id=2479847
- https://bugzilla.redhat.com/show_bug.cgi?id=2479848
- https://bugzilla.redhat.com/show_bug.cgi?id=2479849
- https://bugzilla.redhat.com/show_bug.cgi?id=2479852
- https://bugzilla.redhat.com/show_bug.cgi?id=2479853
- https://bugzilla.redhat.com/show_bug.cgi?id=2479855
- https://bugzilla.redhat.com/show_bug.cgi?id=2479860
- https://bugzilla.redhat.com/show_bug.cgi?id=2479871
- https://bugzilla.redhat.com/show_bug.cgi?id=2479873
- https://bugzilla.redhat.com/show_bug.cgi?id=2479876
- https://bugzilla.redhat.com/show_bug.cgi?id=2479880
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_21380.json
- https://access.redhat.com/security/cve/CVE-2026-8388
- https://www.cve.org/CVERecord?id=CVE-2026-8388
- https://nvd.nist.gov/vuln/detail/CVE-2026-8388
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8388
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8388
- https://access.redhat.com/security/cve/CVE-2026-8391
- https://www.cve.org/CVERecord?id=CVE-2026-8391
- https://nvd.nist.gov/vuln/detail/CVE-2026-8391
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8391
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8391
- https://access.redhat.com/security/cve/CVE-2026-8401
- https://www.cve.org/CVERecord?id=CVE-2026-8401
- https://nvd.nist.gov/vuln/detail/CVE-2026-8401
- https://www.mozilla.org/security/advisories/mfsa2026-45/#CVE-2026-8401
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8401
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8401
- https://access.redhat.com/security/cve/CVE-2026-8946
- https://www.cve.org/CVERecord?id=CVE-2026-8946
- https://nvd.nist.gov/vuln/detail/CVE-2026-8946
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8946
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8946
- https://access.redhat.com/security/cve/CVE-2026-8947
- https://www.cve.org/CVERecord?id=CVE-2026-8947
- https://nvd.nist.gov/vuln/detail/CVE-2026-8947
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8947
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8947
- https://access.redhat.com/security/cve/CVE-2026-8950
- https://www.cve.org/CVERecord?id=CVE-2026-8950
- https://nvd.nist.gov/vuln/detail/CVE-2026-8950
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8950
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8950
- https://access.redhat.com/security/cve/CVE-2026-8953
- https://www.cve.org/CVERecord?id=CVE-2026-8953
- https://nvd.nist.gov/vuln/detail/CVE-2026-8953
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8953
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8953
- https://access.redhat.com/security/cve/CVE-2026-8954
- https://www.cve.org/CVERecord?id=CVE-2026-8954
- https://nvd.nist.gov/vuln/detail/CVE-2026-8954
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8954
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8954
- https://access.redhat.com/security/cve/CVE-2026-8955
- https://www.cve.org/CVERecord?id=CVE-2026-8955
- https://nvd.nist.gov/vuln/detail/CVE-2026-8955
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8955
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8955
- https://access.redhat.com/security/cve/CVE-2026-8956
- https://www.cve.org/CVERecord?id=CVE-2026-8956
- https://nvd.nist.gov/vuln/detail/CVE-2026-8956
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8956
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8956
- https://access.redhat.com/security/cve/CVE-2026-8957
- https://www.cve.org/CVERecord?id=CVE-2026-8957
- https://nvd.nist.gov/vuln/detail/CVE-2026-8957
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8957
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8957
- https://access.redhat.com/security/cve/CVE-2026-8958
- https://www.cve.org/CVERecord?id=CVE-2026-8958
- https://nvd.nist.gov/vuln/detail/CVE-2026-8958
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8958
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8958
- https://access.redhat.com/security/cve/CVE-2026-8961
- https://www.cve.org/CVERecord?id=CVE-2026-8961
- https://nvd.nist.gov/vuln/detail/CVE-2026-8961
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8961
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8961
- https://access.redhat.com/security/cve/CVE-2026-8962
- https://www.cve.org/CVERecord?id=CVE-2026-8962
- https://nvd.nist.gov/vuln/detail/CVE-2026-8962
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8962
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8962
- https://access.redhat.com/security/cve/CVE-2026-8968
- https://www.cve.org/CVERecord?id=CVE-2026-8968
- https://nvd.nist.gov/vuln/detail/CVE-2026-8968
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8968
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8968
- https://access.redhat.com/security/cve/CVE-2026-8970
- https://www.cve.org/CVERecord?id=CVE-2026-8970
- https://nvd.nist.gov/vuln/detail/CVE-2026-8970
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8970
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8970
- https://access.redhat.com/security/cve/CVE-2026-8974
- https://www.cve.org/CVERecord?id=CVE-2026-8974
- https://nvd.nist.gov/vuln/detail/CVE-2026-8974
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8974
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8974
- https://access.redhat.com/security/cve/CVE-2026-8975
- https://www.cve.org/CVERecord?id=CVE-2026-8975
- https://nvd.nist.gov/vuln/detail/CVE-2026-8975
- https://www.mozilla.org/security/advisories/mfsa2026-48/#CVE-2026-8975
- https://www.mozilla.org/security/advisories/mfsa2026-51/#CVE-2026-8975
Affected packages
Red Hat:enterprise_linux:10.2 / firefox
Package
- Name
- firefox
- Purl
- pkg:rpm/redhat/firefox
Red Hat:enterprise_linux:10.2 / firefox-debuginfo
Package
- Name
- firefox-debuginfo
- Purl
- pkg:rpm/redhat/firefox-debuginfo