CVE-2026-92791
Uber Kraken through 0.1.29 Path Traversal via tag parameter
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 16, 2026
- Updated
- Sep 21, 2026
- Reserved
- Sep 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
krakenuber |
|
References
- GitHub Issue #645issue-tracking
- https://github.com/uber/krakenproduct
- DockerTagPather.BlobPath joins the repo and tag with no validationtechnical-description
- the testfs backend joins the entry with no traversal checktechnical-description
- the tag read routes carry no authentication middlewaretechnical-description
- VulnCheck Advisory: Uber Kraken through 0.1.29 Path Traversal via tag parameterthird-party-advisory
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