CVE-2023-6393

Name: CVE-2023-6393
Creator: NVD / NIST
Published: 2023-12-06T17:15:07.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2023-6393 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A flaw was found in the Quarkus Cache Runtime. When request processing utilizes a Uni cached using @CacheResult and the cached Uni reuses the initial "completion" context, the processing switches to the cached Uni instead of the request context. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

A flaw was found in the Quarkus Cache Runtime. When request processing utilizes a Uni cached using @CacheResult and the cached Uni reuses the initial "completion" context, the processing switches to the cached Uni instead of the request context. This is a problem if the cached Uni context contains sensitive information, and could allow a malicious user to benefit from a POST request returning the response that is meant for another user, gaining access to sensitive data.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.63%

45.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Redhat	Build Of Quarkus	All versions

References

https://access.redhat.com/errata/RHSA-2023:7700
https://access.redhat.com/security/cve/CVE-2023-6393Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253113Issue Tracking, Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-6393Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253113Issue Tracking, Vendor Advisory

Timeline

Published: Dec 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6393?

How severe is CVE-2023-6393?

CVE-2023-6393 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6393?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6393?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST