CVE-2026-48208

Denial-of-Service via SVG Rendering in Ticket

State: Published
Severity: 6.5 Medium
Published: Jun 1, 2026
Updated: Jun 1, 2026
Reserved: May 21, 2026

Description

An improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are opened by an agent or customer. The issue can be exploited without JavaScript execution and is not mitigated by the configured Content Security Policy (CSP).

This issue affects OTRS:

* 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X

Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	OTRS

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-791 Incomplete Filtering of Special Elements

Affected Products

Product	Versions
OTRSOTRS AG	7.0.xAffected 8.0.xAffected 2023.xAffected 2024.xAffected 2025.xAffected 2026.x through 2026.3.xAffected
((OTRS)) Community EditionOTRS AG	6.xAffected

References

https://otrs.com/release-notes/otrs-security-advisory-2026-07/

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