{"cve":"CVE-2020-5233","nvd":{"published":"2020-01-30T19:15:11.883","modified":"2026-06-17T03:21:04.743","status":"Modified","description":"OAuth2 Proxy before 5.0 has an open redirect vulnerability. Authentication tokens could be silently harvested by an attacker. This has been patched in version 5.0.","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/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2","https://github.com/pusher/oauth2_proxy/releases/tag/v5.0.0","https://github.com/pusher/oauth2_proxy/security/advisories/GHSA-qqxw-m5fj-f7gv","https://github.com/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2","https://github.com/pusher/oauth2_proxy/releases/tag/v5.0.0"],"products":["oauth2_proxy_project:oauth2_proxy"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2020-5233","score":0.01304,"percentile":0.70523,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qqxw-m5fj-f7gv","url":"https://osv.dev/vulnerability/GHSA-qqxw-m5fj-f7gv","summary":"The pattern '/\\domain.com' is not disallowed when redirecting, allowing for open redirect","modified":"2026-07-08T06:00:28.621953661Z","packages":[{"ecosystem":"Go","name":"github.com/oauth2-proxy/oauth2-proxy","purl":"pkg:golang/github.com/oauth2-proxy/oauth2-proxy","ranges":["<5.0.0"],"fixed":["5.0.0"]}]}],"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."]}