CVE-2026-28512
Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-601 |
| Vendor | pocket-id |
| Product | pocket-id |
| Published | Mar 9, 2026 |
| Last Updated | Mar 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
pocket-id / pocket-id
>= 2.0.0, < 2.4.0