CVE-2026-55834
Pocket ID: Open Redirect on the OIDC /authorize page via unvalidated redirect_uri with prompt=none
Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to services. From 2.6.0 until 2.9.0, frontend/src/routes/authorize/+page.ts reads the redirect_uri query parameter and frontend/src/routes/authorize/+page.svelte uses the raw callbackURL in redirectWithError when prompt=none cannot complete silent authorization. The client-side path only blocks javascript and data schemes and does not invoke the backend callback allow-list validation, so an unauthenticated attacker who knows a valid client_id can redirect a victim browser to an arbitrary HTTP or HTTPS origin for phishing or OIDC error and state smuggling. This issue is fixed in version 2.9.0.
| CWE | CWE-601 |
| Vendor | pocket-id |
| Product | pocket-id |
| Published | Aug 28, 2026 |
| Last Updated | Aug 28, 2026 |
Get instant alerts for pocket-id pocket-id
Be the first to know when new medium vulnerabilities affecting pocket-id pocket-id are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N