{"id":"CVE-2020-5401","aliases":["EUVD-2020-26580","GHSA-jgr4-5mrv-w8ph"],"status":"published","title":"Cloud Foundry GoRouter is vulnerable to cache poisoning","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01037,"percentile":0.64158,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-393","CWE-444"],"published":"2020-02-27T19:30:23Z","modified":"2026-10-24T10:30:55Z","products":[{"vendor":"cloud foundry","product":"routing"},{"vendor":"cloudfoundry","product":"routing_release"}],"references":[{"url":"https://www.cloudfoundry.org/blog/cve-2020-5401","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5401"},{"url":"https://github.com/advisories/GHSA-jgr4-5mrv-w8ph"}],"sources":{"cve":[{"id":"CVE-2020-5401","title":"Cloud Foundry GoRouter is vulnerable to cache poisoning","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","status":"published","published":"2020-02-27T19:30:23.717Z","modified":"2024-09-16T17:38:11.499Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-393"],"updated_at":"2026-11-02T14:35:47.56691Z"}],"euvd":[{"id":"EUVD-2020-26580","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","status":"published","published":"2020-02-27T19:30:23Z","modified":"2024-09-16T17:38:11Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:40.170355Z"}],"ghsa":[{"id":"GHSA-jgr4-5mrv-w8ph","title":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows...","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","status":"published","published":"2022-05-24T17:09:52Z","modified":"2023-01-29T05:01:48Z","updated_at":"2026-11-02T14:44:54.907829Z"}],"nvd":[{"id":"CVE-2020-5401","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","status":"published","published":"2020-02-27T20:15:11.5Z","modified":"2026-06-17T03:21:25.557Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-393","CWE-444"],"updated_at":"2026-11-02T14:05:54.796125Z"}],"osv":[{"id":"CVE-2020-5401","description":"Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.","status":"published","published":"2020-02-27T20:15:11.5Z","modified":"2026-10-24T10:30:55.325356485Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:16.936975Z"}]}}