{"cve":"CVE-2021-23664","nvd":{"published":"2022-01-21T20:15:08.070","modified":"2026-06-17T03:38:51.453","status":"Modified","description":"The package @isomorphic-git/cors-proxy before 2.7.1 are vulnerable to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-918"],"references":["https://github.com/isomorphic-git/cors-proxy/commit/1b1c91e71d946544d97ccc7cf0ac62b859e03311","https://snyk.io/vuln/SNYK-JS-ISOMORPHICGITCORSPROXY-1734788","https://github.com/isomorphic-git/cors-proxy/commit/1b1c91e71d946544d97ccc7cf0ac62b859e03311","https://snyk.io/vuln/SNYK-JS-ISOMORPHICGITCORSPROXY-1734788"],"products":["isomorphic-git:cors-proxy"],"source":"nvd","synced_at":"2026-10-19T21:27:20.926095847+00:00"},"epss":{"cve":"CVE-2021-23664","score":0.01389,"percentile":0.7232,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v82v-rq72-phq9","url":"https://osv.dev/vulnerability/GHSA-v82v-rq72-phq9","summary":"Server side request forgery in @isomorphic-git/cors-proxy","modified":"2026-07-08T06:49:52.727128204Z","packages":[{"ecosystem":"npm","name":"@isomorphic-git/cors-proxy","purl":"pkg:npm/%40isomorphic-git/cors-proxy","ranges":["<2.7.1"],"fixed":["2.7.1"]}]}],"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."]}