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Description

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's Account Center step-up check accepted any active verification record that belonged to the current user and had isVerified === true. A WebAuthn registration verification record for binding a new passkey could be created and verified with only an existing Account API bearer token, then sent in the logto-verification-id header and treated as identityVerified=true by Account Center routes, allowing MFA factor management without proving possession of an existing password, identifier, or MFA factor. This issue is fixed in version 1.41.0.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-287: Improper Authentication

Product status

< 1.41.0
affected

References

github.com/.../logto/security/advisories/GHSA-q4h3-38gc-4p4j exploit

github.com/.../logto/security/advisories/GHSA-q4h3-38gc-4p4j

github.com/logto-io/logto/pull/9110

github.com/...ommit/f56255a7edf3b22b0ec2fdb814814ce6b0123b74

github.com/logto-io/logto/releases/tag/v1.41.0

cve.org (CVE-2026-55377)

nvd.nist.gov (CVE-2026-55377)

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