UBUNTU-CVE-2026-12143

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-12143
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-12143
Upstream
  • CVE-2026-12143
Published
2026-06-12T19:16:00Z
Modified
2026-06-17T04:27:00Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

form-data is a library for creating readable multipart/form-data streams. In versions through 4.0.5, the field argument to FormData#append and the filename option are concatenated verbatim into the Content-Disposition header without escaping carriage return (CR), line feed (LF), or double-quote (") characters. An application that passes attacker-controlled data as a field name or filename (for example, an API gateway that turns JSON object keys into multipart field names) allows the attacker to terminate the header line and inject additional headers, or to smuggle entire additional multipart parts, into the request the application forwards to a backend. This can let the attacker add or override form fields (e.g. set is_admin=true) seen by the downstream parser. This is an instance of CWE-93 (CRLF injection). The fix escapes CR, LF, and " as %0D, %0A, and %22 in field names and filenames, matching the serialization browsers use per the WHATWG HTML multipart/form-data encoding algorithm. Exploitation requires the consuming application to use untrusted input as a field name or filename; applications that use only fixed/trusted field names are not affected. Fixed in 2.5.6, 3.0.5, and 4.0.6.

References

Affected packages

Ubuntu:24.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.0.0-1
4.0.0-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.0-1ubuntu0.1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:25.10
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.0.1-1
4.0.1-2
4.0.1-2ubuntu1
4.0.4+~2.1.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.4+~2.1.0-1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:26.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.0.4+~2.1.0-1
4.0.5+~2.1.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.5+~2.1.0-1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:Pro:14.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

0.*
0.1.0-1
0.1.0-1ubuntu0.14.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.1.0-1ubuntu0.14.04.1~esm1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:Pro:16.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

0.*
0.1.0-1
0.1.0-1ubuntu0.16.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.1.0-1ubuntu0.16.04.1~esm1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:Pro:18.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

0.*
0.1.0-1
0.1.0-1ubuntu0.18.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.1.0-1ubuntu0.18.04.1~esm1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:Pro:20.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

2.*
2.3.2-4
2.5.1-1
3.*
3.0.0-2
3.0.0-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.0-2ubuntu0.1~esm1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"
Ubuntu:Pro:22.04:LTS
node-form-data

Package

Name
node-form-data
Purl
pkg:deb/ubuntu/node-form-data?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.0-2
3.0.0-4
3.0.1-1
3.0.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.1-1ubuntu0.1~esm1",
            "binary_name": "node-form-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-12143.json"