CVE-2026-121489
Apache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directory
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Apache Juneau Apache Software Foundation org.apache.juneau:juneau-microservice-core
maven |
≥ 0; < 9.2.1 (affected, semver)
Other versions: unaffected |
CNA: apache |
| Apache Juneau Apache Software Foundation org.apache.juneau:juneau-commons
maven |
≥ 0; < 9.2.1 (affected, semver)
Other versions: unaffected |
CNA: apache |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 10.0 critical |
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 | CNA: apache |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6CNA: apache · vendor-advisory
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