UBUNTU-CVE-2026-32700

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Source
https://ubuntu.com/security/CVE-2026-32700
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-32700
Upstream
Published
2026-03-18T21:16:00Z
Modified
2026-03-30T18:00:19Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Devise is an authentication solution for Rails based on Warden. Prior to version 5.0.3, a race condition in Devise's Confirmable module allows an attacker to confirm an email address they do not own. This affects any Devise application using the reconfirmable option (the default when using Confirmable with email changes). By sending two concurrent email change requests, an attacker can desynchronize the confirmation_token and unconfirmed_email fields. The confirmation token is sent to an email the attacker controls, but the unconfirmed_email in the database points to a victim's email address. When the attacker uses the token, the victim's email is confirmed on the attacker's account. This is patched in Devise v5.0.3. Users should upgrade as soon as possible. As a workaround, applications can override a specific method from Devise models to force unconfirmed_email to be persisted when unchanged. Note that Mongoid does not seem to respect that will_change! should force the attribute to be persisted, even if it did not really change, so the user might have to implement a workaround similar to Devise by setting changed_attributes["unconfirmed_email"] = nil as well.

References

Affected packages

Ubuntu:16.04:LTS / ruby-devise

Package

Name
ruby-devise
Purl
pkg:deb/ubuntu/ruby-devise@3.5.6-2?arch=source&distro=xenial

Affected ranges

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

Affected versions

3.*
3.5.1-1
3.5.2-1
3.5.2-2
3.5.2-3
3.5.6-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-devise",
            "binary_version": "3.5.6-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json"

Ubuntu:18.04:LTS / ruby-devise

Package

Name
ruby-devise
Purl
pkg:deb/ubuntu/ruby-devise@4.4.3-1?arch=source&distro=bionic

Affected ranges

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

Affected versions

4.*
4.2.0-1
4.3.0-1
4.4.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-devise",
            "binary_version": "4.4.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json"

Ubuntu:20.04:LTS / ruby-devise

Package

Name
ruby-devise
Purl
pkg:deb/ubuntu/ruby-devise@4.7.1-2?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*
4.5.0-3
4.6.2-2
4.7.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-devise",
            "binary_version": "4.7.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json"

Ubuntu:22.04:LTS / ruby-devise

Package

Name
ruby-devise
Purl
pkg:deb/ubuntu/ruby-devise@4.7.3-2?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*
4.7.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-devise",
            "binary_version": "4.7.3-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json"

Ubuntu:24.04:LTS / ruby-devise

Package

Name
ruby-devise
Purl
pkg:deb/ubuntu/ruby-devise@4.9.3-1?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.8.1-1
4.9.2-1
4.9.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-devise",
            "binary_version": "4.9.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32700.json"