Fix of 6 CVEs
* SECURITY UPDATE: detect premature plain text response from SSL upstream (TLS plaintext injection) - debian/patches/CVE-2026-1642.patch: detect premature plain text response from SSL upstream (TLS plaintext injection) - CVE-2026-1642 * SECURITY UPDATE: fix NULL pointer dereference clearing s->passwd in mail auth http requests - debian/patches/CVE-2026-27651.patch: fix NULL pointer dereference clearing s->passwd in mail auth http requests - CVE-2026-27651 * SECURITY UPDATE: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - debian/patches/CVE-2026-27654.patch: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - CVE-2026-27654 * SECURITY UPDATE: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - debian/patches/CVE-2026-27784.patch: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - CVE-2026-27784 * SECURITY UPDATE: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - debian/patches/CVE-2026-32647.patch: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - CVE-2026-32647 * SECURITY UPDATE: reject unsafe characters in URIs and headers set via the Lua API (HTTP response splitting) - debian/modules/nginx-lua/src/ngx_http_lua_util.c, debian/modules/nginx-lua/src/ngx_http_lua_util.h, debian/modules/nginx-lua/src/ngx_http_lua_uri.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_in.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_out.c, deb
- 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.els8
- CVEs
- CVE-2020-36309, CVE-2026-1642, CVE-2026-27651, CVE-2026-27654, CVE-2026-27784, CVE-2026-32647
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:51 UTC · Revision 1
Source evidence
* SECURITY UPDATE: detect premature plain text response from SSL upstream (TLS plaintext injection) - debian/patches/CVE-2026-1642.patch: detect premature plain text response from SSL upstream (TLS plaintext injection) - CVE-2026-1642 * SECURITY UPDATE: fix NULL pointer dereference clearing s->passwd in mail auth http requests - debian/patches/CVE-2026-27651.patch: fix NULL pointer dereference clearing s->passwd in mail auth http requests - CVE-2026-27651 * SECURITY UPDATE: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - debian/patches/CVE-2026-27654.patch: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - CVE-2026-27654 * SECURITY UPDATE: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - debian/patches/CVE-2026-27784.patch: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - CVE-2026-27784 * SECURITY UPDATE: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - debian/patches/CVE-2026-32647.patch: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - CVE-2026-32647 * SECURITY UPDATE: reject unsafe characters in URIs and headers set via the Lua API (HTTP response splitting) - debian/modules/nginx-lua/src/ngx_http_lua_util.c, debian/modules/nginx-lua/src/ngx_http_lua_util.h, debian/modules/nginx-lua/src/ngx_http_lua_uri.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_in.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_out.c, deb
osv:CLSA-2026-1780912663
nginx
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-common
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-core
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-doc
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-extras
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-full
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
nginx-light
Fixed versions: 1.10.3-0ubuntu0.16.04.8+tuxcare.els8
Complete source record
{
"id": "3b9b3c2eb71c6ae11e30383fb2c7aec684f067fa833dde11eeeb0fd9d0f5a332",
"url": "https://osv.dev/vulnerability/CLSA-2026-1780912663",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix of 6 CVEs",
"summary": "* SECURITY UPDATE: detect premature plain text response from SSL upstream (TLS plaintext injection) - debian/patches/CVE-2026-1642.patch: detect premature plain text response from SSL upstream (TLS plaintext injection) - CVE-2026-1642 * SECURITY UPDATE: fix NULL pointer dereference clearing s->passwd in mail auth http requests - debian/patches/CVE-2026-27651.patch: fix NULL pointer dereference clearing s->passwd in mail auth http requests - CVE-2026-27651 * SECURITY UPDATE: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - debian/patches/CVE-2026-27654.patch: destination length validation for WebDAV COPY and MOVE (heap buffer overflow) - CVE-2026-27654 * SECURITY UPDATE: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - debian/patches/CVE-2026-27784.patch: fix integer overflow on 32-bit platforms in ngx_http_mp4_module - CVE-2026-27784 * SECURITY UPDATE: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - debian/patches/CVE-2026-32647.patch: avoid zero size buffers in ngx_http_mp4_module output (out-of-bounds access) - CVE-2026-32647 * SECURITY UPDATE: reject unsafe characters in URIs and headers set via the Lua API (HTTP response splitting) - debian/modules/nginx-lua/src/ngx_http_lua_util.c, debian/modules/nginx-lua/src/ngx_http_lua_util.h, debian/modules/nginx-lua/src/ngx_http_lua_uri.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_in.c, debian/modules/nginx-lua/src/ngx_http_lua_headers_out.c, deb",
"evidence": "osv:CLSA-2026-1780912663",
"products": [
{
"name": {
"value": "nginx",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8",
"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.els8",
"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.els8",
"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.els8",
"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.els8",
"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.els8",
"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.els8",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1780912663",
"aliases": [
"CLSA-2026-1780912663"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-0ubuntu0.16.04.8+tuxcare.els8"
}
]
}
],
"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-2026-1780912663.json"
}
}
],
"modified": "2026-10-26T09:43:35.555425527Z",
"provider": "osv",
"upstream": [
"CVE-2020-36309",
"CVE-2026-1642",
"CVE-2026-27651",
"CVE-2026-27654",
"CVE-2026-27784",
"CVE-2026-32647"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1780912663.html",
"https://nvd.nist.gov/vuln/detail/CVE-2020-36309",
"https://nvd.nist.gov/vuln/detail/CVE-2026-1642",
"https://nvd.nist.gov/vuln/detail/CVE-2026-27651",
"https://nvd.nist.gov/vuln/detail/CVE-2026-27654",
"https://nvd.nist.gov/vuln/detail/CVE-2026-27784",
"https://nvd.nist.gov/vuln/detail/CVE-2026-32647"
]
},
"related_cves": [
{
"value": "CVE-2020-36309",
"evidence": "/upstream"
},
{
"value": "CVE-2026-1642",
"evidence": "/upstream"
},
{
"value": "CVE-2026-27651",
"evidence": "/upstream"
},
{
"value": "CVE-2026-27654",
"evidence": "/upstream"
},
{
"value": "CVE-2026-27784",
"evidence": "/upstream"
},
{
"value": "CVE-2026-32647",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 450012,
"published_at": "2026-06-08T09:58:07+00:00"
}