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Logto Identity Platform has authentication and authorization failures in core protocol handling

🗓️ 23 Jul 2026 00:00:00Reported by CERTType 
cert
 cert🔗 www.kb.cert.org👁 3 Views

Logto Identity Platform has core protocol flaws that may bypass account ownership, multifactor authentication, and single sign-on checks.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-15617
23 Jul 202615:41
–attackerkb
Circl		CVE-2026-15611
24 Jul 202602:21
–circl
Circl		CVE-2026-15616
24 Jul 202602:21
–circl
CVE		CVE-2026-15611
23 Jul 202615:45
–cve
CVE		CVE-2026-15612
23 Jul 202615:45
–cve
CVE		CVE-2026-15614
23 Jul 202615:44
–cve
CVE		CVE-2026-15615
23 Jul 202615:43
–cve
CVE		CVE-2026-15616
23 Jul 202615:43
–cve
CVE		CVE-2026-15617
23 Jul 202615:41
–cve
Cvelist		CVE-2026-15611 Unverified email-based SSO account linking
23 Jul 202615:45
–cvelist
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SourceLink
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on-guard.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/routes/experience/classes/experience-interaction.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/SamlConnector/utils.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/connectors/connector-saml/src/utils.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/OidcConnector/utils.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts
githubwww.github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/routes/experience/classes/verifications/enterprise-sso-verification.ts

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23 Jul 2026 15:40Current
5.5Medium risk
Vulners AI Score5.5
authentication failuresauthorization failuresprotocol handlingsso replayaccount ownership bypassmultifactor authenticationsingle sign onidentity managementsecurity vulnerabilities
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