CVE-2023-23591

Name: CVE-2023-23591
Creator: NVD / NIST
Published: 2023-04-12T14:15:07.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2023-23591 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. The Logback component in Terminalfour before 8.3.14.1 allows OS administrators to obtain sensitive information from application server logs when debug logging is enabled. The fixed versions are 8.2.18.7, 8.2.18.2.2, 8.3.11.1, and 8.3.14.1.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

The Logback component in Terminalfour before 8.3.14.1 allows OS administrators to obtain sensitive information from application server logs when debug logging is enabled. The fixed versions are 8.2.18.7, 8.2.18.2.2, 8.3.11.1, and 8.3.14.1.

Metrics

CVSS 3.1

4.9/10

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

EPSS Probability

0.56%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-532

Affected Software

Vendor	Product	Versions
Terminalfour	Terminalfour	< 8.2.18.2.2
Terminalfour	Terminalfour	>= 8.2.18.3, < 8.2.18.7
Terminalfour	Terminalfour	>= 8.3.0, < 8.3.11.1
Terminalfour	Terminalfour	>= 8.3.12, < 8.3.14.1

References

https://docs.terminalfour.com/articles/release-notes-highlights/Release Notes
https://docs.terminalfour.com/release-notes/83/15.htmlRelease Notes
https://docs.terminalfour.com/articles/release-notes-highlights/Release Notes
https://docs.terminalfour.com/release-notes/83/15.htmlRelease Notes

Timeline

Published: Apr 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23591?

How severe is CVE-2023-23591?

CVE-2023-23591 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23591?

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-2023-23591?

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

Scan your code now

Source: NVD / NIST