{"cve":"CVE-2020-36939","nvd":{"published":"2026-01-27T16:16:11.120","modified":"2026-10-08T16:16:43.670","status":"Deferred","description":"Cassandra Web 0.5.0 contains a directory traversal vulnerability that allows unauthenticated attackers to read arbitrary files by manipulating path traversal parameters. Attackers can exploit the disabled Rack::Protection module to read sensitive system files like /etc/passwd and retrieve Apache Cassandra database credentials.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7},"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-22"],"references":["https://github.com/avalanche123/cassandra-web","https://rubygems.org/gems/cassandra-web/versions/0.5.0","https://www.exploit-db.com/exploits/49362","https://www.vulncheck.com/advisories/cassandra-web-remote-file-read"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:21:16.563232421+00:00"},"epss":{"cve":"CVE-2020-36939","score":0.02977,"percentile":0.8717,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-8mfv-xhp5-48q9","url":"https://osv.dev/vulnerability/GHSA-8mfv-xhp5-48q9","summary":"Cassandra Web - Remote File Read","modified":"2026-09-08T18:41:07.651834Z","packages":[{"ecosystem":"RubyGems","name":"cassandra-web","purl":"pkg:gem/cassandra-web","ranges":["<=0.5.0"],"fixed":[]}]}],"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."]}