CVE-2021-28168 Local information disclosure via system temporary directory

What is CVE-2021-28168?

CVE-2021-28168 is a medium-severity vulnerability in Oracle Communications Cloud Native Core Policy, published on 22 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Eclipse Jersey 2.28 to 2.33 and Eclipse Jersey 3.0.0 to 3.0.1 contains a local information disclosure vulnerability. This is due to the use of the File.createTempFile which creates a file inside of the system temporary directory with the permissions: -rw-r--r--. Thus the contents of this file are viewable by all other users locally on the system. As such, if the contents written is security sensitive, it can be disclosed to other local users.

Weakness: CWE-668, CWE-379, CWE-378

Which versions are affected by CVE-2021-28168?

4 open source packages ship an affected version, including org.glassfish.jersey.core:jersey-common. It affects 3 products.

Products include Eclipse Jersey, Oracle Communications Cloud Native Core Policy, Oracle Communications Cloud Native Core Unified Data Repository.

How do I fix CVE-2021-28168?

Upgrade org.glassfish.jersey.core:jersey-common to a fixed version for your release line: 2.34 or 3.0.2.

Is CVE-2021-28168 being exploited?

There is no known exploitation of CVE-2021-28168 in the wild and no public exploit code.

Other vulnerabilities in Oracle Communications Cloud Native Core Policy

• CVE-2025-12383 Race Condition allows Bypass of Trust Restrictions Critical 9.4

All Oracle Communications Cloud Native Core Policy vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-c43q-5hpj-4crv, OESA-2021-1181, OESA-2024-1036, OESA-2024-1037, OESA-2024-1038, OESA-2024-1039.