Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck
CVE-2026-92791Uber Kraken through 0.1.29 Path Traversal via tag parameter
High 7.5
In plain English
A high-severity path traversal in kraken from uber. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 50.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Issue #645 issue-tracking
- https://github.com/uber/kraken product
- DockerTagPather.BlobPath joins the repo and tag with no validation technical-description
- the testfs backend joins the entry with no traversal check technical-description
- the tag read routes carry no authentication middleware technical-description
- VulnCheck Advisory: Uber Kraken through 0.1.29 Path Traversal via tag parameter third-party-advisory