Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/uber/kraken
- https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128
- https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L
- https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L1
- https://github.com/uber/kraken/issues/645
- https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-v
FAQ
What is CVE-2026-92791?
CVE-2026-92791 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 percen...
How severe is CVE-2026-92791?
CVE-2026-92791 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-92791?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.