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CVE-2026-73101

Information Exposure in Apache Juneau before 9.2.1

CVSS 4.0
10.0 critical
EPSS
—
Published
·
Modified
Analyze CVE-2026-73101 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

Apache Juneau's REST server includes internal exception class and message in the "Thrown" response header and error body on every error, even with stack-trace rendering disabled. This leaks implementation details to any remote client that triggers an error. An attacker can gain sensitive details from unauthenticated users. Apache Juneau through 9.2.0 is affected.

What to do: Upgrade to Apache Juneau 9.2.1.

ProductAffectedFixed in
Apache Juneauthrough 9.2.09.2.1
Estimated exposure
No basis for an estimate.

Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.

Description · NVD

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.

Weakness
CWE-209
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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