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  4. CVE 2026 121489 apache juneau path traversal in directoryresource
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Back to active CVEs
Critical · CVSS 10.0CVE-2026-121489

Apache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directoryCVE-2026-121489

Answer in brief

CVE-2026-121489 records a Critical severity (CVSS 10.0) vulnerability in Apache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directory. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/org.apache.juneau:juneau-commons (generic), Apache Software Foundation/org.apache.juneau:juneau-microservice-core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 10.0
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/org.apache.juneau:juneau-commons (generic), Apache Software Foundation/org.apache.juneau:juneau-microservice-core (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/org.apache.juneau:juneau-commonsgeneric>=0 <9.2.19.2.1
Apache Software Foundation/org.apache.juneau:juneau-microservice-coregeneric>=0 <9.2.19.2.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/org.apache.juneau:juneau-commons, Apache Software Foundation/org.apache.juneau:juneau-microservice-core.
  2. 2Review the reported fix. Update Apache Software Foundation/org.apache.juneau:juneau-commons to 9.2.1; Apache Software Foundation/org.apache.juneau:juneau-microservice-core to 9.2.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referencelists.apache.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-22
Source
CVE List V5
Source checked
Nov 5, 2026
References
1 linked source
Open source record