HighFix available
Red Hat Security Advisory: firefox security update
Type: advisorySources: OSV
- Products
- firefox, firefox-debuginfo, firefox-debugsource
- Affected versions
- Not specified
- Fixed versions
- 0:140.15.0-1.el8_8
- CVEs
- CVE-2026-16365, CVE-2026-75874, CVE-2026-84119, CVE-2026-84120, CVE-2026-84121, CVE-2026-84122, CVE-2026-84124, CVE-2026-84131, CVE-2026-84143, CVE-2026-84145
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 12:03 UTC · Revision 1
Source evidence
Red Hat Security Advisory: firefox security update
core-osv · Original sourcePublished 7 Oct 2026, 10:20 UTC
Red Hat Security Advisory: firefox security update
osv:RHSA-2026:76746
firefox
Fixed versions: 0:140.15.0-1.el8_8
firefox-debuginfo
Fixed versions: 0:140.15.0-1.el8_8
firefox-debugsource
Fixed versions: 0:140.15.0-1.el8_8
firefox
Fixed versions: 0:140.15.0-1.el8_8
firefox-debuginfo
Fixed versions: 0:140.15.0-1.el8_8
firefox-debugsource
Fixed versions: 0:140.15.0-1.el8_8
Complete source record
{
"id": "d0898823acb7a6adff6a2e7245d57096a981b8f37ba9cd40a2c57e771f1d2383",
"url": "https://osv.dev/vulnerability/RHSA-2026%3A76746",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: firefox security update",
"summary": "Red Hat Security Advisory: firefox security update",
"evidence": "osv:RHSA-2026:76746",
"products": [
{
"name": {
"value": "firefox",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-debuginfo",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-debugsource",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-debuginfo",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "firefox-debugsource",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.15.0-1.el8_8",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "RHSA-2026:76746",
"aliases": [
"RHSA-2026:76746"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox",
"purl": "pkg:rpm/redhat/firefox",
"ecosystem": "Red Hat:rhel_e4s:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox-debuginfo",
"purl": "pkg:rpm/redhat/firefox-debuginfo",
"ecosystem": "Red Hat:rhel_e4s:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox-debugsource",
"purl": "pkg:rpm/redhat/firefox-debugsource",
"ecosystem": "Red Hat:rhel_e4s:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox",
"purl": "pkg:rpm/redhat/firefox",
"ecosystem": "Red Hat:rhel_tus:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox-debuginfo",
"purl": "pkg:rpm/redhat/firefox-debuginfo",
"ecosystem": "Red Hat:rhel_tus:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.15.0-1.el8_8"
}
]
}
],
"package": {
"name": "firefox-debugsource",
"purl": "pkg:rpm/redhat/firefox-debugsource",
"ecosystem": "Red Hat:rhel_tus:8.8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:76746.json"
}
}
],
"modified": "2026-10-14T10:30:47Z",
"provider": "osv",
"upstream": [
"CVE-2026-16365",
"CVE-2026-75874",
"CVE-2026-84119",
"CVE-2026-84120",
"CVE-2026-84121",
"CVE-2026-84122",
"CVE-2026-84124",
"CVE-2026-84131",
"CVE-2026-84143",
"CVE-2026-84145"
],
"references": [
"https://access.redhat.com/errata/RHSA-2026:76746",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=2503504",
"https://bugzilla.redhat.com/show_bug.cgi?id=2517832",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526753",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526760",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526764",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526765",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526767",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526773",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526778",
"https://bugzilla.redhat.com/show_bug.cgi?id=2526781",
"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_76746.json",
"https://access.redhat.com/security/cve/CVE-2026-16365",
"https://www.cve.org/CVERecord?id=CVE-2026-16365",
"https://nvd.nist.gov/vuln/detail/CVE-2026-16365",
"https://www.mozilla.org/security/advisories/mfsa2026-68/#CVE-2026-16365",
"https://www.mozilla.org/security/advisories/mfsa2026-71/#CVE-2026-16365",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-16365",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-16365",
"https://access.redhat.com/security/cve/CVE-2026-75874",
"https://www.cve.org/CVERecord?id=CVE-2026-75874",
"https://nvd.nist.gov/vuln/detail/CVE-2026-75874",
"https://www.mozilla.org/security/advisories/mfsa2026-74/#CVE-2026-75874",
"https://www.mozilla.org/security/advisories/mfsa2026-78/#CVE-2026-75874",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-75874",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-75874",
"https://access.redhat.com/security/cve/CVE-2026-84119",
"https://www.cve.org/CVERecord?id=CVE-2026-84119",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84119",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84119",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84119",
"https://access.redhat.com/security/cve/CVE-2026-84120",
"https://www.cve.org/CVERecord?id=CVE-2026-84120",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84120",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84120",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84120",
"https://access.redhat.com/security/cve/CVE-2026-84121",
"https://www.cve.org/CVERecord?id=CVE-2026-84121",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84121",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84121",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84121",
"https://access.redhat.com/security/cve/CVE-2026-84122",
"https://www.cve.org/CVERecord?id=CVE-2026-84122",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84122",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84122",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84122",
"https://access.redhat.com/security/cve/CVE-2026-84124",
"https://www.cve.org/CVERecord?id=CVE-2026-84124",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84124",
"https://www.mozilla.org/security/advisories/mfsa2026-82/#CVE-2026-84124",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84124",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84124",
"https://access.redhat.com/security/cve/CVE-2026-84131",
"https://www.cve.org/CVERecord?id=CVE-2026-84131",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84131",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84131",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84131",
"https://access.redhat.com/security/cve/CVE-2026-84143",
"https://www.cve.org/CVERecord?id=CVE-2026-84143",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84143",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84143",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84143",
"https://access.redhat.com/security/cve/CVE-2026-84145",
"https://www.cve.org/CVERecord?id=CVE-2026-84145",
"https://nvd.nist.gov/vuln/detail/CVE-2026-84145",
"https://www.mozilla.org/security/advisories/mfsa2026-84/#CVE-2026-84145",
"https://www.mozilla.org/security/advisories/mfsa2026-87/#CVE-2026-84145"
]
},
"related_cves": [
{
"value": "CVE-2026-16365",
"evidence": "/upstream"
},
{
"value": "CVE-2026-75874",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84119",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84120",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84121",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84122",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84124",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84131",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84143",
"evidence": "/upstream"
},
{
"value": "CVE-2026-84145",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 316089,
"published_at": "2026-10-07T10:20:09+00:00"
}