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CVE-2026-48208

Denial-of-Service via SVG Rendering in Ticket

Medium6.5EPSS 0.31%
Published
Updated
Reserved
Assigned by
OTRS

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 scores of CVE-2026-48208, by who scored it
Scored byCVSSScoreVector
OTRSCNA (assigner)3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVDNVD · Analyzed3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.31% · top 76% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

Affected products

What to do

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

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .