CVE-2026-48189

Name: CVE-2026-48189
Creator: NVD / NIST
Published: 2026-06-01T04:16:22.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.7/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2026-48189 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X

Metrics

CVSS 3.1

5.7/10

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

EPSS Probability

0.20%

9.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Otrs	Otrs	>= 7.0.0, <= 8.0.37
Otrs	Otrs	>= 2023.0.0, < 2026.4.1

References

https://otrs.com/release-notes/otrs-security-advisory-2026-03/Vendor Advisory

Timeline

Published: Jun 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-48189?

How severe is CVE-2026-48189?

CVE-2026-48189 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2026-48189?

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-2026-48189?

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

Scan your code now

Source: NVD / NIST