Vulnerability details

CVE-2026-121489

Apache Software Foundation Apache Juneau

Apache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directory

CVSS 4.0
10.0Critical

Official description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Juneau. The microservice DirectoryResource does not keep request paths inside its configured root directory. When an application enables the resource's view, upload or delete settings (all off by default), a client can read, write or delete files outside the root, anywhere the server process has access. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue.

CVSS scores

ScoreVersionSourceVector
10.0Critical 4.0 CVEProject cvelistV5 (CNA) (apache) CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected products

VendorProductVersionsSource
Apache Software Foundation Apache Juneau v < 9.2.1 CVEProject cvelistV5 (CNA)
Apache Software Foundation Apache Juneau v < 9.2.1 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-11-05
Last updated
2026-11-05
State
Published
Assigner (CNA)
apache
Kolun priority
26 · Low

Exploit prediction (EPSS)

0.49%
Probability of exploitation in 30 days
42.7%
Percentile (among all CVEs)

Weaknesses (CWE)

  • CWE-22
    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')