CVE-2026-92791CWE-22path-traversal

CVE-2026-92791

High · published September 17, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
48.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00613 · 48.7th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-17T01:17Z
References (7)
https://github.com/uber/kraken · [email protected]https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129 · [email protected]https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84 · [email protected]https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173 · [email protected]https://github.com/uber/kraken/issues/645 · [email protected]https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter · [email protected]https://github.com/uber/kraken/issues/645 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 1%
    epss
  • 16 SEP 20:32Z
    Uber Kraken through 0.1.29 Path Traversal via tag parameter
    cvelistv5