Fix of 5 CVEs
* SECURITY UPDATE: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - debian/patches/CVE-2026-42536.patch: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - CVE-2026-42536 * SECURITY UPDATE: mod_proxy_ftp cross-site scripting in HTML directory list generation - debian/patches/CVE-2026-29170.patch: mod_proxy_ftp cross-site scripting in HTML directory list generation - CVE-2026-29170 * SECURITY UPDATE: mod_ldap use-after-free in per-directory configuration - debian/patches/CVE-2026-29167.patch: mod_ldap use-after-free in per-directory configuration - CVE-2026-29167 * SECURITY UPDATE: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - debian/patches/CVE-2026-42535.patch: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - CVE-2026-42535 * SECURITY UPDATE: mod_proxy_html buffer overflow allowing attack by an untrusted backend - debian/patches/CVE-2026-34355.patch: mod_proxy_html buffer overflow allowing attack by an untrusted backend - CVE-2026-34355
- Products
- apache2, apache2-bin, apache2-data, apache2-dev, apache2-doc, apache2-suexec-custom, apache2-suexec-pristine, apache2-utils
- Affected versions
- Not specified
- Fixed versions
- 1:2.4.18-2ubuntu3.17+tuxcare.els20
- CVEs
- CVE-2026-29167, CVE-2026-29170, CVE-2026-34355, CVE-2026-42535, CVE-2026-42536
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:45 UTC · Revision 1
Source evidence
* SECURITY UPDATE: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - debian/patches/CVE-2026-42536.patch: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - CVE-2026-42536 * SECURITY UPDATE: mod_proxy_ftp cross-site scripting in HTML directory list generation - debian/patches/CVE-2026-29170.patch: mod_proxy_ftp cross-site scripting in HTML directory list generation - CVE-2026-29170 * SECURITY UPDATE: mod_ldap use-after-free in per-directory configuration - debian/patches/CVE-2026-29167.patch: mod_ldap use-after-free in per-directory configuration - CVE-2026-29167 * SECURITY UPDATE: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - debian/patches/CVE-2026-42535.patch: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - CVE-2026-42535 * SECURITY UPDATE: mod_proxy_html buffer overflow allowing attack by an untrusted backend - debian/patches/CVE-2026-34355.patch: mod_proxy_html buffer overflow allowing attack by an untrusted backend - CVE-2026-34355
osv:CLSA-2026-1782141694
apache2
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-bin
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-data
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-dev
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-doc
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-suexec-custom
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-suexec-pristine
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
apache2-utils
Fixed versions: 1:2.4.18-2ubuntu3.17+tuxcare.els20
Complete source record
{
"id": "688cbcd12c06ae0d5cdb73bf55005b78be94be6e498450eda8e1353806736fe2",
"url": "https://osv.dev/vulnerability/CLSA-2026-1782141694",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix of 5 CVEs",
"summary": "* SECURITY UPDATE: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - debian/patches/CVE-2026-42536.patch: mod_xml2enc heap-based buffer overflow via xml2StartParse with untrusted content - CVE-2026-42536 * SECURITY UPDATE: mod_proxy_ftp cross-site scripting in HTML directory list generation - debian/patches/CVE-2026-29170.patch: mod_proxy_ftp cross-site scripting in HTML directory list generation - CVE-2026-29170 * SECURITY UPDATE: mod_ldap use-after-free in per-directory configuration - debian/patches/CVE-2026-29167.patch: mod_ldap use-after-free in per-directory configuration - CVE-2026-29167 * SECURITY UPDATE: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - debian/patches/CVE-2026-42535.patch: mod_dav_fs path handling allows direct manipulation of trusted DAV property databases - CVE-2026-42535 * SECURITY UPDATE: mod_proxy_html buffer overflow allowing attack by an untrusted backend - debian/patches/CVE-2026-34355.patch: mod_proxy_html buffer overflow allowing attack by an untrusted backend - CVE-2026-34355",
"evidence": "osv:CLSA-2026-1782141694",
"products": [
{
"name": {
"value": "apache2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-bin",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-data",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-dev",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-doc",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-suexec-custom",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-suexec-pristine",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "apache2-utils",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.18-2ubuntu3.17+tuxcare.els20",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1782141694",
"aliases": [
"CLSA-2026-1782141694"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2",
"purl": "pkg:deb/tuxcare/apache2?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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-bin",
"purl": "pkg:deb/tuxcare/apache2-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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-data",
"purl": "pkg:deb/tuxcare/apache2-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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-dev",
"purl": "pkg:deb/tuxcare/apache2-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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-doc",
"purl": "pkg:deb/tuxcare/apache2-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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-suexec-custom",
"purl": "pkg:deb/tuxcare/apache2-suexec-custom?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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-suexec-pristine",
"purl": "pkg:deb/tuxcare/apache2-suexec-pristine?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-2026-1782141694.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.18-2ubuntu3.17+tuxcare.els20"
}
]
}
],
"package": {
"name": "apache2-utils",
"purl": "pkg:deb/tuxcare/apache2-utils?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-2026-1782141694.json"
}
}
],
"modified": "2026-10-26T09:43:13.291369711Z",
"provider": "osv",
"upstream": [
"CVE-2026-29167",
"CVE-2026-29170",
"CVE-2026-34355",
"CVE-2026-42535",
"CVE-2026-42536"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1782141694.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-29167",
"https://nvd.nist.gov/vuln/detail/CVE-2026-29170",
"https://nvd.nist.gov/vuln/detail/CVE-2026-34355",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42535",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42536"
]
},
"related_cves": [
{
"value": "CVE-2026-29167",
"evidence": "/upstream"
},
{
"value": "CVE-2026-29170",
"evidence": "/upstream"
},
{
"value": "CVE-2026-34355",
"evidence": "/upstream"
},
{
"value": "CVE-2026-42535",
"evidence": "/upstream"
},
{
"value": "CVE-2026-42536",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449765,
"published_at": "2026-06-22T15:21:53+00:00"
}