{"cve":"CVE-2026-28512","nvd":{"published":"2026-03-10T17:38:50.113","modified":"2026-06-17T10:28:46.417","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-601"],"references":["https://github.com/pocket-id/pocket-id/commit/3a339e33191c31b68bf57db907f800d9de5ffbc8","https://github.com/pocket-id/pocket-id/security/advisories/GHSA-9h33-g3ww-mqff"],"products":["pocket-id:pocket_id"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-28512","score":0.00225,"percentile":0.13156,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9h33-g3ww-mqff","url":"https://osv.dev/vulnerability/GHSA-9h33-g3ww-mqff","summary":"Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion","modified":"2026-03-23T04:56:19.070830926Z","packages":[{"ecosystem":"Go","name":"github.com/pocket-id/pocket-id/backend","purl":"pkg:golang/github.com/pocket-id/pocket-id/backend","ranges":["<0.0.0-20260228130835-3a339e33191c"],"fixed":["0.0.0-20260228130835-3a339e33191c"]}]},{"id":"GO-2026-4653","url":"https://osv.dev/vulnerability/GO-2026-4653","summary":"Pocket ID: OAuth redirect_uri validation bypass via userinfo/host confusion in github.com/pocket-id/pocket-id/backend","modified":"2026-03-23T04:52:50.449427Z","packages":[{"ecosystem":"Go","name":"github.com/pocket-id/pocket-id/backend","purl":"pkg:golang/github.com/pocket-id/pocket-id/backend","ranges":["<0.0.0-20260228130835-3a339e33191c"],"fixed":["0.0.0-20260228130835-3a339e33191c"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}