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CVE PROGRAM SOURCE RECORD7.1 High

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

pocket-id pocket-id

  • >= 2.0.0, < 2.4.0affected

References