DEBIAN-CVE-2026-34964

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34964
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34964.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34964
Upstream
Published
2026-08-25T02:16:40Z
Modified
2026-09-09T09:00:09Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Adminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values. Attackers can inject PDO DSN keys like host= and port= into the server parameter to bypass the privileged-port restriction and establish TCP connections to arbitrary internal hosts and ports before authentication.

References

Affected packages

Debian:12 / adminer

Package

Name
adminer
Purl
pkg:deb/debian/adminer?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.8.1-1
4.8.1-2
4.8.1-4
5.*
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.*
6.0.0-1
6.0.1-1
6.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34964.json"

Debian:13 / adminer

Package

Name
adminer
Purl
pkg:deb/debian/adminer?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
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.*
6.0.0-1
6.0.1-1
6.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34964.json"

Debian:14 / adminer

Package

Name
adminer
Purl
pkg:deb/debian/adminer?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-1

Affected versions

5.*
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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34964.json"