medium · CVSS v3 5.3

CVE-2026-120971

A flaw was found in RESTEasy's default exception mapper. When an unhandled exception other than a WebApplicationExceptio…

Description

A flaw was found in RESTEasy's default exception mapper. When an unhandled exception other than a WebApplicationException is not handled by an application exception mapper, RESTEasy returns the exception's localized message in the HTTP 500 response body. A remote unauthenticated attacker who can trigger such an exception may obtain information contained in that message. The behavior was reproduced with RESTEasy 7.0.2.Final.

Scores

Severity
medium
CVSS v2
5
CVSS v3
5.3
CVSS v4
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EPSS
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