CVE-2026-55834Medium· 4.3▾ SunlitPocket 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/+pag…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 23.7 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 29.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/pocket-id/pocket-id/backend >= 2.6.0, <= 2.8.0Patched in:
github.com/pocket-id/pocket-id/backend 2.9.0Connected by shared product, vendor, weakness, or advisory.
GO-2026-6117NonePocket ID has a reauthentication bypass via one-time access token login — passkey step-up requirement defeated by JWT freshness check tha…
CVE-2026-43983HighPocket ID: OIDC refresh token flow bypasses authorization revocation, account disabling, and group restrictions
GHSA-hp74-gm6m-2qm5MediumPocket ID has a reauthentication bypass via one-time access token login — passkey step-up requirement defeated by JWT freshness check that accepts any login method
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