HighFix available
Red Hat Security Advisory: thunderbird security update
Type: advisorySources: OSV
- Products
- thunderbird, thunderbird-debuginfo, thunderbird-debugsource
- Affected versions
- Not specified
- Fixed versions
- 0:140.9.1-1.el8_4
- CVEs
- CVE-2026-33416, CVE-2026-33636, CVE-2026-5731, CVE-2026-5732, CVE-2026-5734
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 20:15 UTC · Revision 1
Source evidence
Red Hat Security Advisory: thunderbird security update
core-osv · Original sourcePublished 7 May 2026, 10:07 UTC
Red Hat Security Advisory: thunderbird security update
osv:RHSA-2026:14303
thunderbird
Fixed versions: 0:140.9.1-1.el8_4
thunderbird-debuginfo
Fixed versions: 0:140.9.1-1.el8_4
thunderbird-debugsource
Fixed versions: 0:140.9.1-1.el8_4
thunderbird
Fixed versions: 0:140.9.1-1.el8_4
thunderbird-debuginfo
Fixed versions: 0:140.9.1-1.el8_4
thunderbird-debugsource
Fixed versions: 0:140.9.1-1.el8_4
Complete source record
{
"id": "85a3e7477c9b6ae3fa3aadd73c0e3ff3a724e6b62dfeae167114794b4e657ab5",
"url": "https://osv.dev/vulnerability/RHSA-2026%3A14303",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: thunderbird security update",
"summary": "Red Hat Security Advisory: thunderbird security update",
"evidence": "osv:RHSA-2026:14303",
"products": [
{
"name": {
"value": "thunderbird",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird-debuginfo",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird-debugsource",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird-debuginfo",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird-debugsource",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:140.9.1-1.el8_4",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "RHSA-2026:14303",
"aliases": [
"RHSA-2026:14303"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird",
"purl": "pkg:rpm/redhat/thunderbird",
"ecosystem": "Red Hat:rhel_aus:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird-debuginfo",
"purl": "pkg:rpm/redhat/thunderbird-debuginfo",
"ecosystem": "Red Hat:rhel_aus:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird-debugsource",
"purl": "pkg:rpm/redhat/thunderbird-debugsource",
"ecosystem": "Red Hat:rhel_aus:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird",
"purl": "pkg:rpm/redhat/thunderbird",
"ecosystem": "Red Hat:rhel_eus_long_life:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird-debuginfo",
"purl": "pkg:rpm/redhat/thunderbird-debuginfo",
"ecosystem": "Red Hat:rhel_eus_long_life:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:140.9.1-1.el8_4"
}
]
}
],
"package": {
"name": "thunderbird-debugsource",
"purl": "pkg:rpm/redhat/thunderbird-debugsource",
"ecosystem": "Red Hat:rhel_eus_long_life:8.4::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:14303.json"
}
}
],
"modified": "2026-10-16T10:11:15Z",
"provider": "osv",
"upstream": [
"CVE-2026-33416",
"CVE-2026-33636",
"CVE-2026-5731",
"CVE-2026-5732",
"CVE-2026-5734"
],
"references": [
"https://access.redhat.com/errata/RHSA-2026:14303",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=2451805",
"https://bugzilla.redhat.com/show_bug.cgi?id=2451819",
"https://bugzilla.redhat.com/show_bug.cgi?id=2455897",
"https://bugzilla.redhat.com/show_bug.cgi?id=2455901",
"https://bugzilla.redhat.com/show_bug.cgi?id=2455908",
"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_14303.json",
"https://access.redhat.com/security/cve/CVE-2026-5731",
"https://www.cve.org/CVERecord?id=CVE-2026-5731",
"https://nvd.nist.gov/vuln/detail/CVE-2026-5731",
"https://www.mozilla.org/security/advisories/mfsa2026-27/#CVE-2026-5731",
"https://www.mozilla.org/security/advisories/mfsa2026-29/#CVE-2026-5731",
"https://access.redhat.com/security/cve/CVE-2026-5732",
"https://www.cve.org/CVERecord?id=CVE-2026-5732",
"https://nvd.nist.gov/vuln/detail/CVE-2026-5732",
"https://www.mozilla.org/security/advisories/mfsa2026-27/#CVE-2026-5732",
"https://www.mozilla.org/security/advisories/mfsa2026-29/#CVE-2026-5732",
"https://access.redhat.com/security/cve/CVE-2026-5734",
"https://www.cve.org/CVERecord?id=CVE-2026-5734",
"https://nvd.nist.gov/vuln/detail/CVE-2026-5734",
"https://www.mozilla.org/security/advisories/mfsa2026-27/#CVE-2026-5734",
"https://www.mozilla.org/security/advisories/mfsa2026-29/#CVE-2026-5734",
"https://access.redhat.com/security/cve/CVE-2026-33416",
"https://www.cve.org/CVERecord?id=CVE-2026-33416",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33416",
"https://github.com/pnggroup/libpng/commit/23019269764e35ed8458e517f1897bd3c54820eb",
"https://github.com/pnggroup/libpng/commit/7ea9eea884a2328cc7fdcb3c0c00246a50d90667",
"https://github.com/pnggroup/libpng/commit/a3a21443ed12bfa1ef46fa0d4fb2b74a0fa34a25",
"https://github.com/pnggroup/libpng/commit/c1b0318b393c90679e6fa5bc1d329fd5d5012ec1",
"https://github.com/pnggroup/libpng/pull/824",
"https://github.com/pnggroup/libpng/security/advisories/GHSA-m4pc-p4q3-4c7j",
"https://access.redhat.com/security/cve/CVE-2026-33636",
"https://www.cve.org/CVERecord?id=CVE-2026-33636",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33636",
"https://github.com/pnggroup/libpng/commit/7734cda20cf1236aef60f3bbd2267c97bbb40869",
"https://github.com/pnggroup/libpng/commit/aba9f18eba870d14fb52c5ba5d73451349e339c3",
"https://github.com/pnggroup/libpng/security/advisories/GHSA-wjr5-c57x-95m2"
]
},
"related_cves": [
{
"value": "CVE-2026-33416",
"evidence": "/upstream"
},
{
"value": "CVE-2026-33636",
"evidence": "/upstream"
},
{
"value": "CVE-2026-5731",
"evidence": "/upstream"
},
{
"value": "CVE-2026-5732",
"evidence": "/upstream"
},
{
"value": "CVE-2026-5734",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 339436,
"published_at": "2026-05-07T10:07:54+00:00"
}