HIGH 8.7 NVD
CVE-2026-92791
Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configure
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.
References
- https://github.com/uber/kraken
- https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129
- https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84
- https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173
- https://github.com/uber/kraken/issues/645
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-16 via NVD.
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