MediumFix available
Red Hat Security Advisory: xz security update
Type: advisorySources: OSV
- Products
- xz, xz-debuginfo, xz-debugsource, xz-devel, xz-libs, xz-libs-debuginfo, xz-lzma-compat, xz-lzma-compat-debuginfo
- Affected versions
- Not specified
- Fixed versions
- 1:5.6.2-4.el10_2.1
- CVEs
- CVE-2026-34743
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 29 Oct 2026, 07:17 UTC · Revision 1
Source evidence
Red Hat Security Advisory: xz security update
core-osv · Original sourcePublished 8 Sept 2026, 10:19 UTC
Red Hat Security Advisory: xz security update
osv:RHSA-2026:64787
xz-debuginfo
Fixed versions: 1:5.6.2-4.el10_2.1
xz-debugsource
Fixed versions: 1:5.6.2-4.el10_2.1
xz-devel
Fixed versions: 1:5.6.2-4.el10_2.1
xz-libs-debuginfo
Fixed versions: 1:5.6.2-4.el10_2.1
xz-lzma-compat
Fixed versions: 1:5.6.2-4.el10_2.1
xz-lzma-compat-debuginfo
Fixed versions: 1:5.6.2-4.el10_2.1
xz
Fixed versions: 1:5.6.2-4.el10_2.1
xz-libs
Fixed versions: 1:5.6.2-4.el10_2.1
Complete source record
{
"id": "029476014f766e752cd0565378ab805913bf87165ae987f1fb323cd9945b20a5",
"url": "https://osv.dev/vulnerability/RHSA-2026%3A64787",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: xz security update",
"summary": "Red Hat Security Advisory: xz security update",
"evidence": "osv:RHSA-2026:64787",
"products": [
{
"name": {
"value": "xz-debuginfo",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-debugsource",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-devel",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-libs-debuginfo",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-lzma-compat",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-lzma-compat-debuginfo",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xz-libs",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:5.6.2-4.el10_2.1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "RHSA-2026:64787",
"aliases": [
"RHSA-2026:64787"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-debuginfo",
"purl": "pkg:rpm/redhat/xz-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-debugsource",
"purl": "pkg:rpm/redhat/xz-debugsource",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-devel",
"purl": "pkg:rpm/redhat/xz-devel",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-libs-debuginfo",
"purl": "pkg:rpm/redhat/xz-libs-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-lzma-compat",
"purl": "pkg:rpm/redhat/xz-lzma-compat",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-lzma-compat-debuginfo",
"purl": "pkg:rpm/redhat/xz-lzma-compat-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz",
"purl": "pkg:rpm/redhat/xz",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:5.6.2-4.el10_2.1"
}
]
}
],
"package": {
"name": "xz-libs",
"purl": "pkg:rpm/redhat/xz-libs",
"ecosystem": "Red Hat:enterprise_linux:10.2"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:64787.json"
}
}
],
"modified": "2026-10-10T10:17:01Z",
"provider": "osv",
"upstream": [
"CVE-2026-34743"
],
"references": [
"https://access.redhat.com/errata/RHSA-2026:64787",
"https://access.redhat.com/security/updates/classification/#moderate",
"https://bugzilla.redhat.com/show_bug.cgi?id=2454589",
"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_64787.json",
"https://access.redhat.com/security/cve/CVE-2026-34743",
"https://www.cve.org/CVERecord?id=CVE-2026-34743",
"https://nvd.nist.gov/vuln/detail/CVE-2026-34743",
"https://github.com/tukaani-project/xz/commit/c8c22869e780ff57c96b46939c3d79ff99395f87",
"https://github.com/tukaani-project/xz/releases/tag/v5.8.3",
"https://github.com/tukaani-project/xz/security/advisories/GHSA-x872-m794-cxhv"
]
},
"related_cves": [
{
"value": "CVE-2026-34743",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 228769,
"published_at": "2026-09-08T10:19:03+00:00"
}