{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-118485","assignerOrgId":"6064c9f1-42e5-4cc5-a67a-1636d7a9d3fd","state":"PUBLISHED","assignerShortName":"OCD","dateReserved":"2026-10-28T11:13:12.954Z","datePublished":"2026-10-28T11:26:59.053Z","dateUpdated":"2026-10-28T11:26:59.053Z"},"containers":{"cna":{"providerMetadata":{"orgId":"6064c9f1-42e5-4cc5-a67a-1636d7a9d3fd","shortName":"OCD","dateUpdated":"2026-10-28T11:26:59.053Z"},"title":"Axel Download Accelerator Path Traversal via URL Filename Decoding","datePublic":"2026-10-28T11:25:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-24","description":"CWE-24 Path traversal: '../filedir'","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-126","descriptions":[{"lang":"en","value":"CAPEC-126 Path Traversal"}]}],"affected":[{"vendor":"Axel Download Accelerator","product":"Axel","repo":"https://github.com/axel-download-accelerator/axel/","versions":[{"status":"affected","version":"0","lessThanOrEqual":"2.17.14","versionType":"git"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:axel_download_accelerator:axel:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndIncluding":"2.17.14"}]}]}],"descriptions":[{"lang":"en","value":"Axel Download Accelerator 2.17.14 and earlier performs URL percent-decoding (http_decode()) on the output filename after the URL has been parsed and the filename component extracted. This allows an attacker to embed %2e%2e%2f (URL-encoded ../) sequences in the URL path. These sequences survive the URL parser intact (they contain no literal / characters) but are decoded into directory traversal sequences before the output file is opened for writing. As a result, a crafted URL can cause axel to write downloaded content to arbitrary filesystem paths relative to the current working directory.","supportingMedia":[{"type":"text/html","base64":false,"value":"Axel Download Accelerator 2.17.14 and earlier performs URL percent-decoding (http_decode()) on the output filename after the URL has been parsed and the filename component extracted. This allows an attacker to embed %2e%2e%2f (URL-encoded ../) sequences in the URL path. These sequences survive the URL parser intact (they contain no literal / characters) but are decoded into directory traversal sequences before the output file is opened for writing. As a result, a crafted URL can cause axel to write downloaded content to arbitrary filesystem paths relative to the current working directory."}]}],"references":[{"url":"https://github.com/axel-download-accelerator/axel/issues/477","tags":["issue-tracking"]},{"url":"https://github.com/axel-download-accelerator/axel/pull/483/changes/4e76e1a1dd1c4ea11b445e2c45e4ee257c76314e","tags":["patch"]},{"url":"https://github.com/axel-download-accelerator/axel/milestone/22","tags":["vendor-advisory"]},{"url":"https://advisories.orangecyberdefense.com/advisories/167","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"}}],"solutions":[{"lang":"en","value":"Apply patch provided by Axel. Will be fixed in 2.17.16 as well","supportingMedia":[{"type":"text/html","base64":false,"value":"Apply patch provided by Axel. Will be fixed in 2.17.16 as well"}]}],"timeline":[{"time":"2026-02-27T23:00:00.000Z","lang":"en","value":"Vulnerability found"},{"time":"2026-03-03T16:01:00.000Z","lang":"en","value":"Vulnerability disclosed to Axel"},{"time":"2026-07-22T06:52:00.000Z","lang":"en","value":"Patch released"},{"time":"2026-10-28T11:25:00.000Z","lang":"en","value":"Vulnerability disclosed"}],"credits":[{"lang":"en","value":"Guillaume Meunier from Orange Cyberdefense CERT VOC Team","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}