CVE-2026-73101

Apache Juneau: Internal exception class and message disclosed via error response header and body regardless of secure defaults

Published Nov 5, 2026 CVSS 4.0 · 10 Critical EPSS < 1% KEV · Not listed
Description
Generation of Error Message Containing Sensitive Information vulnerability in Apache Juneau.

The REST server sends the internal exception class and message to clients in a "Thrown" response header on every error response, and can include internal exception messages in the error body, even when stack-trace rendering is disabled. This reveals implementation details to remote clients.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache juneau
Vendors & Products Apache
Apache juneau
Type Values Removed Values Added
Description Generation of Error Message Containing Sensitive Information vulnerability in Apache Juneau. The REST server sends the internal exception class and message to clients in a "Thrown" response header on every error response, and can include internal exception messages in the error body, even when stack-trace rendering is disabled. This reveals implementation details to remote clients. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue.
Title Apache Juneau: Internal exception class and message disclosed via error response header and body regardless of secure defaults
Weaknesses CWE-209
References
Metrics cvssV4_0

{'score': 10, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 10, 2026, 6:58 PM
Reserved
Aug 10, 2026, 8:29 PM
Status
Deferred
Published
Nov 5, 2026, 12:17 PM
Modified
Nov 10, 2026, 7:21 PM