CVE-2026-28512

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

March 09, 2026

Last Modified

March 13, 2026

CWE ID

CWE-601

Source

GitHub

Vendor

Product

github.com/pocket-id/pocket-id/backend

External References

https://github.com/pocket-id/pocket-id/security/advisories/GHSA-9h33-g3ww-mqff
https://github.com/pocket-id/pocket-id/commit/3a339e33191c31b68bf57db907f800d9de5ffbc8
https://github.com/advisories/GHSA-9h33-g3ww-mqff

CVE-2026-28512

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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