{"id":"CVE-2026-33431","state":"PUBLISHED","title":"Roxy-WI Vulnerable to Authenticated Arbitrary File Read via Path Traversal in Config Version Viewer","description":"Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.4, the POST /config/<service>/show API endpoint accepts a configver parameter that is directly appended to a base directory path to construct a local file path, which is subsequently opened and its contents returned to the caller. The existing path traversal guard only inspects the base directory variable (which is never user-controlled) and entirely ignores the user-supplied configver value. An authenticated attacker can supply a configver value containing `../` sequences to escape the intended directory and read arbitrary files accessible to the web application process. Version 8.2.6.4 contains a patch for the issue.","publishedAt":"2026-04-20T20:24:15.319Z","updatedAt":"2026-04-21T13:42:19.802Z","severity":{"score":5.7,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["roxy-wi roxy-wi"],"affected":[{"vendor":"roxy-wi","product":"roxy-wi","versions":[{"version":"< 8.2.6.4","status":"affected"}]}],"references":["https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w3c9-36jf-qrw4","https://github.com/roxy-wi/roxy-wi/commit/d4d100067dd0ee04317f05d3b51be8fcfdc3f802"],"weaknesses":["CWE-24"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33431.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33431","state":"PUBLISHED","datePublished":"2026-04-20T20:24:15.319Z","dateUpdated":"2026-04-21T13:42:19.802Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-19T18:45:22.435Z"},"containers":{"cna":{"title":"Roxy-WI Vulnerable to Authenticated Arbitrary File Read via Path Traversal in Config Version Viewer","descriptions":[{"lang":"en","value":"Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. Prior to version 8.2.6.4, the POST /config/<service>/show API endpoint accepts a configver parameter that is directly appended to a base directory path to construct a local file path, which is subsequently opened and its contents returned to the caller. The existing path traversal guard only inspects the base directory variable (which is never user-controlled) and entirely ignores the user-supplied configver value. An authenticated attacker can supply a configver value containing `../` sequences to escape the intended directory and read arbitrary files accessible to the web application process. Version 8.2.6.4 contains a patch for the issue."}],"affected":[{"vendor":"roxy-wi","product":"roxy-wi","versions":[{"version":"< 8.2.6.4","status":"affected"}]}],"references":[{"url":"https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w3c9-36jf-qrw4","name":"https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w3c9-36jf-qrw4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/roxy-wi/roxy-wi/commit/d4d100067dd0ee04317f05d3b51be8fcfdc3f802","name":"https://github.com/roxy-wi/roxy-wi/commit/d4d100067dd0ee04317f05d3b51be8fcfdc3f802","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-24","lang":"en","description":"CWE-24: Path Traversal: '../filedir'","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-20T20:24:15.319Z"},"source":{"advisory":"GHSA-w3c9-36jf-qrw4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-w3c9-36jf-qrw4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T13:42:13.885336Z","id":"CVE-2026-33431","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-21T13:42:19.802Z"}}]}}}