High severity7.5NVD Advisory· Published Sep 16, 2026
CVE-2026-92791
CVE-2026-92791
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.
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Affected products
2Patches
Vulnerability mechanics
References
5- github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.gonvd
- github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.gonvd
- github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.gonvd
- github.com/uber/kraken/issues/645nvd
- www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameternvd
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