CVE-2026-28513
Pocket ID: OIDC authorization code validation uses AND instead of OR, allowing cross-client token exchange
Description
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. Prior to 2.4.0, the OIDC token endpoint rejects an authorization code only when both the client ID is wrong and the code is expired. This allows cross-client code exchange and expired code reuse. This vulnerability is fixed in 2.4.0.
INFO
Published Date :
March 9, 2026, 10:19 p.m.
Last Modified :
March 9, 2026, 10:19 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-28513
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Pocket ID to version 2.4.0 or later.
- Ensure proper validation of authorization codes.
- Verify client ID and code expiration.
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CVE-2026-28513 vulnerability anywhere in the article.