GHSA-57hq-95w6-v4fc · 深刻度: medium · エコシステム: rubygems — Devise has a confirmable "change email" race condition permits user to confirm email they have no access to
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.
総合評価: CVE-2026-32700 は低リスク(30.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.27%、19 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.27% | +0.25% |
| 2 | 2026-03-21 | 0.06% | 0.02% | -0.04% |
| 3 | 2026-03-19 | — | 0.06% | — |
EPSS の全履歴 (全 3 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.0 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
1.6 | 3.6 | [email protected] |
GHSA-57hq-95w6-v4fc · 深刻度: medium · エコシステム: rubygems — Devise has a confirmable "change email" race condition permits user to confirm email they have no access to
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-32700 not yet assigned priority: Debian including 1 source packages (ruby-devise), 2 status rows across 2 suites (bookworm, bullseye): open 2. | https://security-tracker.debian.org/tracker/CVE-2026-32700 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-32700 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2026-32700/ |
ubuntu
|
medium | CVE-2026-32700 medium priority: Ubuntu including 1 source packages (ruby-devise), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): needs-triage 6, DNE 1. | https://ubuntu.com/security/CVE-2026-32700 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| heartcombo | devise | < 5.0.3 | cpe:2.3:a:heartcombo:devise:*:*:*:*:*:ruby:*:* |
| URL | タグ |
|---|---|
| https://github.com/heartcombo/devise/issues/5783 | Issue Tracking |
| https://github.com/heartcombo/devise/pull/5784 | Issue Tracking Patch |
| https://github.com/heartcombo/devise/security/advisories/GHSA-57hq-95w6-v4fc | Vendor Advisory |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/GHSA-57hq-95w6-v4fc.yml | Broken Link |