{"id":"CVE-2026-92791","aliases":["EUVD-2026-81054","GHSA-2jmw-fcwx-7j6h"],"status":"published","title":"Uber Kraken through 0.1.29 Path Traversal via tag parameter","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","severity":{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00613,"percentile":0.49701,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-09-16T20:32:46Z","modified":"2026-10-28T02:30:51Z","products":[{"vendor":"uber","product":"kraken"}],"references":[{"url":"https://github.com/uber/kraken/issues/645","tags":["issue-tracking","exploit","report"]},{"url":"https://github.com/uber/kraken","tags":["product","package"]},{"url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84","tags":["technical-description","article"]},{"url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173","tags":["technical-description","article"]},{"url":"https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92791","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2jmw-fcwx-7j6h"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92791.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-92791","title":"Uber Kraken through 0.1.29 Path Traversal via tag parameter","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","status":"published","published":"2026-09-16T20:32:46.839Z","modified":"2026-09-21T15:41:40.643Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:48:24.536396Z"}],"euvd":[{"id":"EUVD-2026-81054","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","status":"published","published":"2026-09-16T20:32:46Z","modified":"2026-09-21T15:41:40Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"updated_at":"2026-11-02T17:28:05.36994Z"}],"ghsa":[{"id":"GHSA-2jmw-fcwx-7j6h","title":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint,...","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","status":"published","published":"2026-09-16T21:32:55Z","modified":"2026-09-16T21:32:57Z","cvss":[{"version":"4.0","score":8.7,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:12:02.762055Z"}],"nvd":[{"id":"CVE-2026-92791","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","status":"published","published":"2026-09-16T21:17:28.627Z","modified":"2026-09-24T21:08:55.03Z","cvss":[{"version":"4.0","score":8.7,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:49.013904Z"}],"osv":[{"id":"CVE-2026-92791","title":"Uber Kraken through 0.1.29 Path Traversal via tag parameter","description":"Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.","status":"published","published":"2026-09-16T20:32:46.839Z","modified":"2026-10-28T02:30:51.905919415Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:20.588039Z"}]}}