Medium severity · published Jun 1, 2026
CVE-2026-48208
Denial-of-Service via SVG Rendering in Ticket
6.5
CVSS
0.3%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OC
((OTRS)) Community Edition · OTRS AG
6.x · source: vendor
OT
OTRS · OTRS AG
7.0.x; 8.0.x; 2023.x; 2024.x; 2025.x; 2026.x through 2026.3.x · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48208
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48208
Vendor Advisory
https://otrs.com/release-notes/otrs-security-advisory-2026-07/
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