{"id":"CVE-2026-92791","summary":"Uber Kraken through 0.1.29 Path Traversal via tag parameter","details":"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.","modified":"2026-09-23T03:30:29.333348835Z","published":"2026-09-16T20:32:46.839Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92791.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-22"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92791.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92791"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter"},{"type":"REPORT","url":"https://github.com/uber/kraken/issues/645"},{"type":"PACKAGE","url":"https://github.com/uber/kraken"},{"type":"ARTICLE","url":"https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129"},{"type":"ARTICLE","url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84"},{"type":"ARTICLE","url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/uber/kraken","events":[{"introduced":"0"},{"fixed":"16b1e60348efc4270b12eecf7a1a6ca03b82626b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.1.29"},{"fixed":"0.1.29"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.1.26","v0.1.28","v0.1.27","v0.1.25","v0.1.24","v0.1.23","v0.1.22","v0.1.21","v0.1.20","v0.1.19","v0.1.18","v0.1.17","v0.1.16","v0.1.15","v0.1.14","v0.1.13","v0.1.12","v0.1.11","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92791.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}