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CVE-2026-48208— Denial-of-Service via SVG Rendering in Ticket

Quick assessment

Affected
OTRS AG OTRS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OTRS是德国OTRS公司的一个服务管理解决方案。 OTRS 7.0.X版本、8.0.X版本、2023.X版本、2024.X版本、2025.X版本和2026.X版本至2026.4.X之前版本存在安全漏洞，该漏洞源于工单文章渲染中活动SVG内容中和不当，可能导致攻击者通过邮件内容注入特制SVG有效载荷，在打开受影响工单时导致浏览器端资源耗尽和拒绝服务。

CVSS 6.5 · Medium EPSS 0.33% · P26

Affected Version Matrix 7

VendorProduct Version RangeStatus
OTRS AG ((OTRS)) Community Edition 6.x affected
OTRS AG OTRS 7.0.x affected
8.0.x affected
2023.x affected
2024.x affected
2025.x affected
2026.x≤ 2026.3.x affected
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I. Basic Information for CVE-2026-48208

Vulnerability Information
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Vulnerability Title
Denial-of-Service via SVG Rendering in Ticket
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
OTRS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OTRS是德国OTRS公司的一个服务管理解决方案。 OTRS 7.0.X版本、8.0.X版本、2023.X版本、2024.X版本、2025.X版本和2026.X版本至2026.4.X之前版本存在安全漏洞，该漏洞源于工单文章渲染中活动SVG内容中和不当，可能导致攻击者通过邮件内容注入特制SVG有效载荷，在打开受影响工单时导致浏览器端资源耗尽和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OTRS AG OTRS 7.0.x -
OTRS AG ((OTRS)) Community Edition 6.x -

II. Public POCs for CVE-2026-48208

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III. Intelligence Information for CVE-2026-48208

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Vendor Advisories for CVE-2026-48208 (1)

Same Patch Batch · OTRS AG · 2026-06-01 · 7 CVEs total

CVE-2026-48188 9.1 CRITICAL SQL Injection via MySQL Quote Method
CVE-2026-48209 7.1 HIGH Reflected XSS in authenticated agent context
CVE-2026-48187 5.7 MEDIUM Email with special content can lead to DoS
CVE-2026-48189 5.7 MEDIUM Bypass DedicatedAgentToCustomerGroups Setting
CVE-2026-48191 3.5 LOW Wrong Permission Handling in Document Search Article Meta Filters
CVE-2026-48190 3.5 LOW Incorrect handling of permissions in External Interface Config Item List module

IV. Related Vulnerabilities

Same product: OTRS
Same vendor: OTRS AG
Same weakness: CWE-400

V. Comments for CVE-2026-48208

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