cvedb.io
CVE-2026-66884
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-08-04T12:16:36.373 · Last modified 2026-08-04T13:18:56.217

Summary

Cross-Site Request Forgery vulnerability in Erlang Ecosystem Foundation oidcc_plug (Oidcc.Plug.AuthorizationCallback module) allows an attacker to make a victim's browser complete an authorization flow the victim never initiated. This vulnerability is associated with program file lib/oidcc/plug/authorization_callback.ex and program routine Oidcc.Plug.AuthorizationCallback.call/2. A callback request that carries no Oidcc.Plug.Authorize session is processed with every security check disabled rather than being rejected. call/2 substitutes permissive defaults for the absent session, and each downstream check treats its value as nothing to compare and returns :ok, so the nonce, state, PKCE, peer IP and user agent checks are all skipped. A separate clause of check_state/2 also accepts a state-

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.