UnratedFix available
Fix CVE(s): CVE-2026-42533
Type: advisorySources: OSV
* SECURITY UPDATE: heap buffer overflow and info-leak via regex map capture variables - debian/patches/CVE-2026-42533.patch: add script engine buffer-overrun protection - CVE-2026-42533
- Products
- nginx, nginx-common, nginx-core, nginx-doc, nginx-extras, nginx-full, nginx-light
- Affected versions
- Not specified
- Fixed versions
- 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
- CVEs
- CVE-2026-42533
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:08 UTC · Revision 1
Source evidence
* SECURITY UPDATE: heap buffer overflow and info-leak via regex map capture variables - debian/patches/CVE-2026-42533.patch: add script engine buffer-overrun protection - CVE-2026-42533
osv:CLSA-2026-1784632234
nginx
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-common
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-core
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-doc
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-extras
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-full
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
nginx-light
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els10
Complete source record
{
"id": "5d504539360455fca1530b77d3eacc8d087f123e000e9d1a0ae0dca6a5d0a906",
"url": "https://osv.dev/vulnerability/CLSA-2026-1784632234",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-42533",
"summary": "* SECURITY UPDATE: heap buffer overflow and info-leak via regex map capture variables - debian/patches/CVE-2026-42533.patch: add script engine buffer-overrun protection - CVE-2026-42533",
"evidence": "osv:CLSA-2026-1784632234",
"products": [
{
"name": {
"value": "nginx",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-common",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-core",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-doc",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-extras",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-full",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nginx-light",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1784632234",
"aliases": [
"CLSA-2026-1784632234"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx",
"purl": "pkg:deb/tuxcare/nginx?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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-common",
"purl": "pkg:deb/tuxcare/nginx-common?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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-core",
"purl": "pkg:deb/tuxcare/nginx-core?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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-doc",
"purl": "pkg:deb/tuxcare/nginx-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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-extras",
"purl": "pkg:deb/tuxcare/nginx-extras?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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-full",
"purl": "pkg:deb/tuxcare/nginx-full?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-2026-1784632234.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els10"
}
]
}
],
"package": {
"name": "nginx-light",
"purl": "pkg:deb/tuxcare/nginx-light?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-2026-1784632234.json"
}
}
],
"modified": "2026-10-26T09:31:47.103461445Z",
"provider": "osv",
"upstream": [
"CVE-2026-42533"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1784632234.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42533"
]
},
"related_cves": [
{
"value": "CVE-2026-42533",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448467,
"published_at": "2026-07-21T11:10:59+00:00"
}