UnratedFix available
Fix CVE(s): CVE-2026-16118
Type: advisorySources: OSV
* SECURITY UPDATE: heap buffer overflow when byte-swapping MIME magic values on little-endian systems - debian/patches/CVE-2026-16118.patch: fix pointer arithmetic on the write side of the byte swap in _xdg_mime_magic_parse_magic_line() - CVE-2026-16118
- Products
- libglib2.0-0, libglib2.0-0-refdbg, libglib2.0-bin, libglib2.0-data, libglib2.0-dev, libglib2.0-doc, libglib2.0-tests
- Affected versions
- Not specified
- Fixed versions
- 2.48.2-0ubuntu4.8+tuxcare.els8
- CVEs
- CVE-2026-16118
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:40 UTC · Revision 1
Source evidence
* SECURITY UPDATE: heap buffer overflow when byte-swapping MIME magic values on little-endian systems - debian/patches/CVE-2026-16118.patch: fix pointer arithmetic on the write side of the byte swap in _xdg_mime_magic_parse_magic_line() - CVE-2026-16118
osv:CLSA-2026-1791558283
libglib2.0-0
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-0-refdbg
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-bin
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-data
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-dev
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-doc
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
libglib2.0-tests
Fixed versions: 2.48.2-0ubuntu4.8+tuxcare.els8
Complete source record
{
"id": "4903fb70f5066b8857422b9c36766e240157bc3c7450ecafe50ed5cc3a9e299b",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791558283",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-16118",
"summary": "* SECURITY UPDATE: heap buffer overflow when byte-swapping MIME magic values on little-endian systems - debian/patches/CVE-2026-16118.patch: fix pointer arithmetic on the write side of the byte swap in _xdg_mime_magic_parse_magic_line() - CVE-2026-16118",
"evidence": "osv:CLSA-2026-1791558283",
"products": [
{
"name": {
"value": "libglib2.0-0",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.48.2-0ubuntu4.8+tuxcare.els8",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.48.2-0ubuntu4.8+tuxcare.els8",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"fixed_versions": [
{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libglib2.0-dev",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libglib2.0-doc",
"evidence": "/affected/5/package/name"
},
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"fixed_versions": [
{
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"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libglib2.0-tests",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.48.2-0ubuntu4.8+tuxcare.els8",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791558283",
"aliases": [
"CLSA-2026-1791558283"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.48.2-0ubuntu4.8+tuxcare.els8"
}
]
}
],
"package": {
"name": "libglib2.0-0",
"purl": "pkg:deb/tuxcare/libglib2.0-0?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "libglib2.0-0-refdbg",
"purl": "pkg:deb/tuxcare/libglib2.0-0-refdbg?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
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"events": [
{
"introduced": "0"
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{
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}
]
}
],
"package": {
"name": "libglib2.0-bin",
"purl": "pkg:deb/tuxcare/libglib2.0-bin?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "libglib2.0-data",
"purl": "pkg:deb/tuxcare/libglib2.0-data?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.48.2-0ubuntu4.8+tuxcare.els8"
}
]
}
],
"package": {
"name": "libglib2.0-dev",
"purl": "pkg:deb/tuxcare/libglib2.0-dev?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.48.2-0ubuntu4.8+tuxcare.els8"
}
]
}
],
"package": {
"name": "libglib2.0-doc",
"purl": "pkg:deb/tuxcare/libglib2.0-doc?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.48.2-0ubuntu4.8+tuxcare.els8"
}
]
}
],
"package": {
"name": "libglib2.0-tests",
"purl": "pkg:deb/tuxcare/libglib2.0-tests?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1791558283.json"
}
}
],
"modified": "2026-10-26T09:32:02.517494781Z",
"provider": "osv",
"upstream": [
"CVE-2026-16118"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1791558283.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-16118"
]
},
"related_cves": [
{
"value": "CVE-2026-16118",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449455,
"published_at": "2026-10-09T15:04:53+00:00"
}