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 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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter

Configurations

No configuration.

History

16 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 21:17

Updated : 2026-09-16 21:17

NVD link : CVE-2026-92791

Mitre link : CVE-2026-92791

CVE.ORG link : CVE-2026-92791

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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