{"id":"CVE-2026-92791","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-92791","summary":"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…","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.","published":"2026-09-16T21:17:28.627","modified":"2026-09-16T21:17:28.627","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/uber/kraken"},{"type":"WEB","url":"https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129"},{"type":"WEB","url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84"},{"type":"WEB","url":"https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173"},{"type":"WEB","url":"https://github.com/uber/kraken/issues/645"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T21:17:28.627"}}