{"cve":"CVE-2020-12666","nvd":{"published":"2020-05-05T22:15:13.027","modified":"2026-06-17T02:52:06.073","status":"Modified","description":"macaron before 1.3.7 has an open redirect in the static handler, as demonstrated by the http://127.0.0.1:4000//example.com/ URL.","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/go-macaron/macaron/issues/198","https://github.com/go-macaron/macaron/releases/tag/v1.3.7","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QEUOHRC4EN4WZ66EVFML2UCV7ZQ63XZ/","https://github.com/go-macaron/macaron/issues/198","https://github.com/go-macaron/macaron/releases/tag/v1.3.7"],"products":["fedoraproject:fedora","go-macaron:macaron"],"source":"nvd","synced_at":"2026-10-19T21:04:18.695612450+00:00"},"epss":{"cve":"CVE-2020-12666","score":0.0141,"percentile":0.72658,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-733f-44f3-3frw","url":"https://osv.dev/vulnerability/GHSA-733f-44f3-3frw","summary":"gopkg.in/macaron.v1 Open Redirect vulnerability","modified":"2024-05-20T19:24:04Z","packages":[{"ecosystem":"Go","name":"gopkg.in/macaron.v1","purl":"pkg:golang/gopkg.in/macaron.v1","ranges":["<1.3.7"],"fixed":["1.3.7"]}]},{"id":"GO-2020-0039","url":"https://osv.dev/vulnerability/GO-2020-0039","summary":"Open redirect in gopkg.in/macaron.v1","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"gopkg.in/macaron.v1","purl":"pkg:golang/gopkg.in/macaron.v1","ranges":["<1.3.7"],"fixed":["1.3.7"]}]}],"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."]}