Open Redirect in Pocket-Id
CVE-2026-28512
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.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Pocket-Id — versions >= 2.0.0, < 2.4.0
- Pocket-Id Pocket Id
Weakness classification (CWE)
References
- github.com/pocket-id/pocket-id/security/advisories/GHSA-9h33-g3ww-mqff (Patch, Mitigation, Vendor Advisory)
- github.com/pocket-id/pocket-id/commit/3a339e33191c31b68bf57db907f800d9de5ffbc8 (Patch)
Frequently asked questions
- What is CVE-2026-28512?
- CVE-2026-28512 is a high-severity vulnerability in Pocket-Id, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 7.1/10. Published 2026-03-10.
- How severe is CVE-2026-28512?
- High severity. CVSS v3 base score is 7.1 out of 10.