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Vulnerabilities

Vulnerability · CVE-2026-32700

Devise is an authentication solution for Rails based on Warden.

Published Mar 18, 2026 · catalog updated Jun 17, 2026 · Devise is an authentication

Check if you run it

No confirmed exploitation is on record for CVE-2026-32700. EPSS is 0.35%. Act only if a listed version of Devise is an authentication is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Devise is an authentication).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.35%
Remediation
Advisory link
Affected products
cpe heartcombo/devise

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 option (the default when using Confirmable with email changes). By sending two concurrent email change requests, an attacker can desynchronize the and fields. The confirmation token is sent to an email the attacker controls, but the 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 to be persisted when unchanged. Note that Mongoid does not seem to respect that 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 as well.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe heartcombo/deviseversion unspecified

How to fix CVE-2026-32700

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-32700. EPSS is 0.35%. Act only if a listed version of Devise is an authentication is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-362: Race Condition. EPSS 0.35%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 18, 2026 · NIST NVD

    Detected

    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 option (the default when using Confirmable with email changes). By sending two concurrent email change requests, an attacker can desynchronize the and fie

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 option (the default when using Confirmable with email changes). By sending two concurrent email change requests, an attacker can desynchronize the and fie

Sources

  • CVE.orgVulnerability recordCVE-2026-32700

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-32700

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-32700

    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 option (the defaul

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.