CVE-2021-20289
Exposure of class information in RESTEasy
5.3
MEDIUM
CVSS 3.1
EPSS 0.08%
Description
A flaw was found in RESTEasy in all current versions of RESTEasy up to 4.6.0.Final. The endpoint class and method names are returned as part of the exception response when RESTEasy cannot convert one of the request URI path or query values to the matching JAX-RS resource method's parameter value. The highest threat from this vulnerability is to data confidentiality.
How to fix CVE-2021-20289
To remediate CVE-2021-20289, upgrade the affected package to a fixed version below.
- —upgrade to 4.6.1 or later
Is CVE-2021-20289 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.6.0, < 4.6.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |