DEBIAN-CVE-2026-27654
NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker process or modification of source or destination file names outside the document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias directives. The integrity impact is constrained because the NGINX worker process user has low privileges and does not have access to the entire system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
DEBIAN-CVE-2026-27654
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-27654
nginx
Source reference: /affected/0/package/name
- Affected versions
- 1.22.1-9
Source reference:
/affected/0/versions1.22.1-9+deb12u1Source reference:
/affected/0/versions1.22.1-9+deb12u2Source reference:
/affected/0/versions1.22.1-9+deb12u3Source reference:
/affected/0/versions1.22.1-9+deb12u4Source reference:
/affected/0/versions - Fixed versions
- 1.22.1-9+deb12u5
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
nginx
Source reference: /affected/1/package/name
- Affected versions
- 1.26.3-3
Source reference:
/affected/1/versions1.26.3-3+deb13u1Source reference:
/affected/1/versions1.26.3-3+deb13u2Source reference:
/affected/1/versions - Fixed versions
- 1.26.3-3+deb13u3
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
nginx
Source reference: /affected/2/package/name
- Affected versions
- 1.26.3-3
Source reference:
/affected/2/versions1.28.0-1Source reference:
/affected/2/versions1.28.0-2Source reference:
/affected/2/versions1.28.0-3Source reference:
/affected/2/versions1.28.0-4Source reference:
/affected/2/versions1.28.0-5Source reference:
/affected/2/versions1.28.0-6Source reference:
/affected/2/versions1.28.1-1Source reference:
/affected/2/versions1.28.1-2Source reference:
/affected/2/versions1.28.1-3Source reference:
/affected/2/versions1.28.2-1Source reference:
/affected/2/versions1.28.2-2Source reference:
/affected/2/versions1.28.2-3Source reference:
/affected/2/versions1.28.2-4Source reference:
/affected/2/versions - Fixed versions
- 1.28.3-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.22.1-9+deb12u5"
}
]
}
],
"package": {
"name": "nginx",
"purl": "pkg:deb/debian/nginx?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.22.1-9",
"1.22.1-9+deb12u1",
"1.22.1-9+deb12u2",
"1.22.1-9+deb12u3",
"1.22.1-9+deb12u4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.26.3-3+deb13u3"
}
]
}
],
"package": {
"name": "nginx",
"purl": "pkg:deb/debian/nginx?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.26.3-3",
"1.26.3-3+deb13u1",
"1.26.3-3+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.28.3-1"
}
]
}
],
"package": {
"name": "nginx",
"purl": "pkg:deb/debian/nginx?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.26.3-3",
"1.28.0-1",
"1.28.0-2",
"1.28.0-3",
"1.28.0-4",
"1.28.0-5",
"1.28.0-6",
"1.28.1-1",
"1.28.1-2",
"1.28.1-3",
"1.28.2-1",
"1.28.2-2",
"1.28.2-3",
"1.28.2-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-27654.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56283 · Revision 1
- Added to Heist Feed
- Publisher date