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

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches


Workaround

No workaround given by the vendor.

History

Mon, 01 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 04:00:00 +0000

Type Values Removed Values Added
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
Title Email with special content can lead to DoS
Weaknesses CWE-400
CWE-770
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: OTRS

Published:

Updated: 2026-06-01T13:17:04.742Z

Reserved: 2026-05-21T07:53:13.253Z

Link: CVE-2026-48187

cve-icon Vulnrichment

Updated: 2026-06-01T13:16:59.209Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-01T04:16:22.410

Modified: 2026-06-01T18:12:56.073

Link: CVE-2026-48187

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T06:30:22Z

Weaknesses