Critical severity9.1NVD Advisory· Published Jul 23, 2026· Updated Jul 27, 2026

CVE-2026-15612

Description

Logto bypasses OIDC nonce validation when the nonce claim is absent from the id_token, enabling replay of authentication tokens and weakening session-binding.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Logto Io/Logtollm-fuzzy

Patches

Vulnerability mechanics

References

github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/OidcConnector/utils.tsnvd

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