CVE-2019-18180: Otrs

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

Improper Check for filenames with overly long extensions in PostMaster (sending in email) or uploading files (e.g. attaching files to mails) of ((OTRS)) Community Edition and OTRS allows an remote attacker to cause an endless loop. This issue affects: OTRS AG: ((OTRS)) Community Edition 5.0.x version 5.0.38 and prior versions; 6.0.x version 6.0.23 and prior versions. OTRS AG: OTRS 7.0.x version 7.0.12 and prior versions.

Affected products

• Otrs Otrs: from 5.0.0, before 5.0.39 (fixed in 5.0.39); from 6.0.0, before 6.0.24 (fixed in 6.0.24); from 7.0.0, before 7.0.13 (fixed in 7.0.13)

Published 2019-12-05. Last modified 2026-06-17.