Patch Forecast
Amber warning
Patch this week.

CVE-2026-121489

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

Risk score
65/100
CVSS
10.0 v4.0
Published
5 Nov 2026

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What to know

What it is
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 c…
Affected
See advisory
Fix
Upgrade the product to 9.2.1 or later.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 10.0 critical
  • Remotely exploitable without logging in

References

Original 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.

Last activity 5 Nov 2026. Patch Forecast updates every hour.