DEBIAN-CVE-2026-100696
Adminer 4.16.0 through 6.0.1 contain a pre-authentication Server-Side Request Forgery (SSRF) vulnerability in the optional Elasticsearch driver (plugins/drivers/elastic.php), fixed in 6.0.2. Because adminer/include/auth.inc.php invokes Driver::connect() before the login result is validated, an unauthenticated attacker who submits crafted auth[server], auth[username], and auth[password] parameters can cause the Adminer server to issue an HTTP GET request (via get_url()/file_get_contents()) to an arbitrary reachable host and port. The driver validates only general server syntax and does not block loopback, private, link-local, or other reserved addresses; if no port is given it appends the default 9200, and Adminer's generic port check rejects ports below 1024. Selected JSON error fields from non-2xx Elasticsearch-style responses, as well as connection failures, are rendered on the login page, providing a port-scanning oracle and enabling internal network reconnaissance and service fingerprinting. Exploitation requires that the optional Elasticsearch driver be explicitly deployed (e.g., via the adminer/elastic.php template or an adminer_object() configuration; it is not loaded in a default build) and that PHP allow_url_fopen be enabled.
DEBIAN-CVE-2026-100696
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-2026-100696
adminer
Source reference: /affected/0/package/name
- Affected versions
- 4.8.1-1
Source reference:
/affected/0/versions4.8.1-2Source reference:
/affected/0/versions4.8.1-4Source reference:
/affected/0/versions5.1.0-1Source reference:
/affected/0/versions5.2.1+dfsg-1Source reference:
/affected/0/versions5.3.0+dfsg-1Source reference:
/affected/0/versions5.4.0+dfsg-1Source reference:
/affected/0/versions5.4.1+dfsg-1Source reference:
/affected/0/versions5.4.2+dfsg-1Source reference:
/affected/0/versions5.4.3+dfsg-1Source reference:
/affected/0/versions5.4.4+dfsg-1Source reference:
/affected/0/versions6.0.0-1Source reference:
/affected/0/versions6.0.1-1Source reference:
/affected/0/versions6.0.2-1Source reference:
/affected/0/versions6.1.0-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
adminer
Source reference: /affected/1/package/name
- Affected versions
- 5.2.1+dfsg-1
Source reference:
/affected/1/versions5.3.0+dfsg-1Source reference:
/affected/1/versions5.4.0+dfsg-1Source reference:
/affected/1/versions5.4.1+dfsg-1Source reference:
/affected/1/versions5.4.2+dfsg-1Source reference:
/affected/1/versions5.4.3+dfsg-1Source reference:
/affected/1/versions5.4.4+dfsg-1Source reference:
/affected/1/versions6.0.0-1Source reference:
/affected/1/versions6.0.1-1Source reference:
/affected/1/versions6.0.2-1Source reference:
/affected/1/versions6.1.0-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
adminer
Source reference: /affected/2/package/name
- Affected versions
- 5.2.1+dfsg-1
Source reference:
/affected/2/versions5.3.0+dfsg-1Source reference:
/affected/2/versions5.4.0+dfsg-1Source reference:
/affected/2/versions5.4.1+dfsg-1Source reference:
/affected/2/versions5.4.2+dfsg-1Source reference:
/affected/2/versions5.4.3+dfsg-1Source reference:
/affected/2/versions5.4.4+dfsg-1Source reference:
/affected/2/versions6.0.0-1Source reference:
/affected/2/versions6.0.1-1Source reference:
/affected/2/versions - Fixed versions
- 6.0.2-1
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"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/debian/adminer?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"4.8.1-1",
"4.8.1-2",
"4.8.1-4",
"5.1.0-1",
"5.2.1+dfsg-1",
"5.3.0+dfsg-1",
"5.4.0+dfsg-1",
"5.4.1+dfsg-1",
"5.4.2+dfsg-1",
"5.4.3+dfsg-1",
"5.4.4+dfsg-1",
"6.0.0-1",
"6.0.1-1",
"6.0.2-1",
"6.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100696.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/debian/adminer?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5.2.1+dfsg-1",
"5.3.0+dfsg-1",
"5.4.0+dfsg-1",
"5.4.1+dfsg-1",
"5.4.2+dfsg-1",
"5.4.3+dfsg-1",
"5.4.4+dfsg-1",
"6.0.0-1",
"6.0.1-1",
"6.0.2-1",
"6.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100696.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0.2-1"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/debian/adminer?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"5.2.1+dfsg-1",
"5.3.0+dfsg-1",
"5.4.0+dfsg-1",
"5.4.1+dfsg-1",
"5.4.2+dfsg-1",
"5.4.3+dfsg-1",
"5.4.4+dfsg-1",
"6.0.0-1",
"6.0.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100696.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #25821 · Revision 1
- Added to Heist Feed
- Publisher date