CVE-2026-15611

Critical · CVSS 9.1

CVSS: 9.1; nvd
EPSS: 0.15%; 5th pct
KEV: No
Class: oss containerizable; CWE-287

Description

Logto allows unverified email-based SSO account linking, enabling an attacker to register an identity at a permissive IdP using a victim’s email and gain unauthorized access to the victim’s account.

References

https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts#L274
https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/routes/experience/classes/verifications/enterprise-sso-verification.ts#L284-L297

Status: profiled · ingested 2026-07-27T18:00:00.000Z