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CVE-2026-55834

Pocket ID: Open Redirect on the OIDC /authorize page via unvalidated redirect_uri with prompt=none PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
pocket-id / pocket-idaffected >= 2.6.0, < 2.9.0

CWE

CWE-601

References

ADP enrichment

CISA-ADP

No English description supplied.