CVE-2026-28512
Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion
Description
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.
INFO
Published Date :
March 9, 2026, 10:17 p.m.
Last Modified :
March 9, 2026, 10:17 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-28512
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.
- Review and validate all redirect_uri configurations.
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CVE-2026-28512 vulnerability anywhere in the article.