CVE-2026-48187: Otrs

Medium severity, CVSS 5.7. EPSS: 0.4% chance of exploitation in the next 30 days.

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

Affected products

• Otrs Otrs: up to and including 6.0.32; from 7.0.0, up to and including 8.0.37; from 2023.0.0, before 2026.4.1 (fixed in 2026.4.1)

Published 2026-06-01. Last modified 2026-07-22.