{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32700", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-13T14:33:42.823Z", "datePublished": "2026-03-18T20:55:55.034Z", "dateUpdated": "2026-03-18T20:55:55.034Z"}, "containers": {"cna": {"title": "Devise has a confirmable \"change email\" race condition that permits user to confirm email they have no access to", "problemTypes": [{"descriptions": [{"cweId": "CWE-362", "lang": "en", "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6, "baseSeverity": "MEDIUM", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/heartcombo/devise/security/advisories/GHSA-57hq-95w6-v4fc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/heartcombo/devise/security/advisories/GHSA-57hq-95w6-v4fc"}, {"name": "https://github.com/heartcombo/devise/issues/5783", "tags": ["x_refsource_MISC"], "url": "https://github.com/heartcombo/devise/issues/5783"}, {"name": "https://github.com/heartcombo/devise/pull/5784", "tags": ["x_refsource_MISC"], "url": "https://github.com/heartcombo/devise/pull/5784"}, {"name": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/GHSA-57hq-95w6-v4fc.yml", "tags": ["x_refsource_MISC"], "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/GHSA-57hq-95w6-v4fc.yml"}], "affected": [{"vendor": "heartcombo", "product": "devise", "versions": [{"version": "< 5.0.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-18T20:55:55.034Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-57hq-95w6-v4fc", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-32700", "lastModified": "2026-03-19T13:25:00.570", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-03-18T21:16:26.943", "references": [{"source": "[email protected]", "url": "https://github.com/heartcombo/devise/issues/5783"}, {"source": "[email protected]", "url": "https://github.com/heartcombo/devise/pull/5784"}, {"source": "[email protected]", "url": "https://github.com/heartcombo/devise/security/advisories/GHSA-57hq-95w6-v4fc"}, {"source": "[email protected]", "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/GHSA-57hq-95w6-v4fc.yml"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "devise: Devise: Unauthorized email confirmation due to a race condition", "id": "2448858", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448858"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-367", "details": ["A flaw was found in Devise, an authentication solution for Rails. A race condition in the Confirmable module allows a remote attacker to confirm an email address they do not own. By sending two concurrent email change requests, an attacker can desynchronize the confirmation token and unconfirmed email fields. This enables the attacker to confirm a victim's email on their own account, potentially leading to unauthorized account manipulation."], "name": "CVE-2026-32700", "public_date": "2026-03-18T20:55:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-32700\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-32700\nhttps://github.com/heartcombo/devise/issues/5783\nhttps://github.com/heartcombo/devise/pull/5784\nhttps://github.com/heartcombo/devise/security/advisories/GHSA-57hq-95w6-v4fc\nhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise/GHSA-57hq-95w6-v4fc.yml"], "statement": "This MODERATE race condition vulnerability in Devise's Confirmable module allows authenticated attackers to confirm emails they don't own. Exploitation requires high complexity (precise timing of concurrent requests) and a valid account. The scope change to S:C is questionable as the attack stays within Devise's auth boundary. Impact is high to confidentiality and integrity through unauthorized email association. Affects applications using reconfirmable (default). Fixed in Devise 5.0.3.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.0.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "devise", "source": "cna", "vendor": "heartcombo"}, "product": "devise", "vendor": "heartcombo"}], "created": "2026-03-19T08:55:28.509196+00:00", "updated": "2026-03-19T08:55:28.509273+00:00", "vendors": ["heartcombo", "heartcombo$PRODUCT$devise"]}