CVE-2026-121489 PUBLISHED

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

Assigner: apache
Reserved: 03.11.2026 Published: 05.11.2026 Updated: 05.11.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 10

Product Status

Vendor Apache Software Foundation
Product Apache Juneau
Versions Default: unaffected
  • affected from 0 to 9.2.1 (excl.)
Vendor Apache Software Foundation
Product Apache Juneau
Versions Default: unaffected
  • affected from 0 to 9.2.1 (excl.)

Credits

  • LTSHFWJT finder

References

Problem Types

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