CVE-2026-28512

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.

PUBLISHED Reserved 2026-02-27 | Published 2026-03-09 | Updated 2026-03-10 | Assigner GitHub_M

Problem types

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Product status

References

github.com/...ket-id/security/advisories/GHSA-9h33-g3ww-mqff

github.com/...ommit/3a339e33191c31b68bf57db907f800d9de5ffbc8

cve.org (CVE-2026-28512)

nvd.nist.gov (CVE-2026-28512)

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