CVE-2026-48187

MEDIUM

OTRS Email Handling - Resource Exhaustion Denial of Service

Title source: manual

Description

An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS: * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X Please note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected

References (1)

Core 1

Core References

https://otrs.com/release-notes/otrs-security-advisory-2026-06/

Scores

CVSS v3 5.7

EPSS 0.0018

EPSS Percentile 7.5%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-400 CWE-770

Status published

Products (9)

otrs/otrs < 6.0.32

otrs/otrs 7.0.0 - 8.0.37

OTRS AG/((OTRS)) Community Edition 6.x

OTRS AG/OTRS 2023.x

OTRS AG/OTRS 2024.x

OTRS AG/OTRS 2025.x

OTRS AG/OTRS 2026.x - 2026.3.x

OTRS AG/OTRS 7.0.x

OTRS AG/OTRS 8.0.x

Published Jun 01, 2026

Tracked Since Jun 01, 2026