httpd: Fix of 5 CVEs
- CVE-2026-29167: mod_ldap: use-after-free in per-directory configuration — deep-copy the client certificate list (and referenced path/password strings) into the connection pool instead of a shallow header copy - CVE-2026-29170: mod_proxy_ftp: cross-site scripting in the generated FTP directory listing — escape href filenames with ap_os_escape_path() wrapped in ap_escape_html() instead of ap_escape_uri() - CVE-2026-34355: mod_proxy_html: heap buffer overflow reachable from an untrusted backend — replace hand-rolled buffer management with the ap_varbuf API - CVE-2026-42535: mod_dav_fs: deny WebDAV access to/within the .DAV state directory in dav_fs_get_resource() - CVE-2026-42536: mod_xml2enc: heap buffer overflow in fix_skipto — keep the buffer length (bblen) accounting in sync when advancing the buffer
- Products
- httpd, httpd-devel, httpd-manual, httpd-tools, mod_ldap, mod_proxy_html, mod_session, mod_ssl
- Affected versions
- Not specified
- Fixed versions
- 1:2.4.6-99.0.5.el7_9.1.tuxcare.els12, 2.4.6-99.0.5.el7_9.1.tuxcare.els12
- 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, 11:34 UTC · Revision 1
Source evidence
- CVE-2026-29167: mod_ldap: use-after-free in per-directory configuration — deep-copy the client certificate list (and referenced path/password strings) into the connection pool instead of a shallow header copy - CVE-2026-29170: mod_proxy_ftp: cross-site scripting in the generated FTP directory listing — escape href filenames with ap_os_escape_path() wrapped in ap_escape_html() instead of ap_escape_uri() - CVE-2026-34355: mod_proxy_html: heap buffer overflow reachable from an untrusted backend — replace hand-rolled buffer management with the ap_varbuf API - CVE-2026-42535: mod_dav_fs: deny WebDAV access to/within the .DAV state directory in dav_fs_get_resource() - CVE-2026-42536: mod_xml2enc: heap buffer overflow in fix_skipto — keep the buffer length (bblen) accounting in sync when advancing the buffer
osv:CLSA-2026-1781627270
httpd
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
httpd-devel
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
httpd-manual
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
httpd-tools
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
mod_ldap
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
mod_proxy_html
Fixed versions: 1:2.4.6-99.0.5.el7_9.1.tuxcare.els12
mod_session
Fixed versions: 2.4.6-99.0.5.el7_9.1.tuxcare.els12
mod_ssl
Fixed versions: 1:2.4.6-99.0.5.el7_9.1.tuxcare.els12
Complete source record
{
"id": "1b2d1745694d9e94821f56c780599432109f4ff8e7a1bc6fa333253e20c1cb8d",
"url": "https://osv.dev/vulnerability/CLSA-2026-1781627270",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "httpd: Fix of 5 CVEs",
"summary": "- CVE-2026-29167: mod_ldap: use-after-free in per-directory configuration — deep-copy the client certificate list (and referenced path/password strings) into the connection pool instead of a shallow header copy - CVE-2026-29170: mod_proxy_ftp: cross-site scripting in the generated FTP directory listing — escape href filenames with ap_os_escape_path() wrapped in ap_escape_html() instead of ap_escape_uri() - CVE-2026-34355: mod_proxy_html: heap buffer overflow reachable from an untrusted backend — replace hand-rolled buffer management with the ap_varbuf API - CVE-2026-42535: mod_dav_fs: deny WebDAV access to/within the .DAV state directory in dav_fs_get_resource() - CVE-2026-42536: mod_xml2enc: heap buffer overflow in fix_skipto — keep the buffer length (bblen) accounting in sync when advancing the buffer",
"evidence": "osv:CLSA-2026-1781627270",
"products": [
{
"name": {
"value": "httpd",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "httpd-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "httpd-manual",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "httpd-tools",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mod_ldap",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mod_proxy_html",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mod_session",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mod_ssl",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.4.6-99.0.5.el7_9.1.tuxcare.els12",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1781627270",
"aliases": [
"CLSA-2026-1781627270"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "httpd",
"purl": "pkg:rpm/tuxcare/httpd?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "httpd-devel",
"purl": "pkg:rpm/tuxcare/httpd-devel?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "httpd-manual",
"purl": "pkg:rpm/tuxcare/httpd-manual?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "httpd-tools",
"purl": "pkg:rpm/tuxcare/httpd-tools?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "mod_ldap",
"purl": "pkg:rpm/tuxcare/mod_ldap?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "mod_proxy_html",
"purl": "pkg:rpm/tuxcare/mod_proxy_html?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "mod_session",
"purl": "pkg:rpm/tuxcare/mod_session?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.4.6-99.0.5.el7_9.1.tuxcare.els12"
}
]
}
],
"package": {
"name": "mod_ssl",
"purl": "pkg:rpm/tuxcare/mod_ssl?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1781627270.json"
}
}
],
"modified": "2026-10-26T09:31:57.766511722Z",
"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/rhel7els/CLSA-2026-1781627270.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": 449164,
"published_at": "2026-06-16T16:28:08+00:00"
}