SEPTEMBER 18, 2026
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Case File

CVE-2026-84370

HIGH · CVSS 8.2 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The SVGO library, specifically versions prior to 2.8.4, 3.3.5, and 4.1.0, contains a vulnerability in its removeScripts plugin that fails to adequately filter executable links in SVG files, particularly those with namespace-prefixed anchor elements. This flaw allows attackers to inject malicious scripts into SVG content, which can be executed in the context of the victim's browser, potentially leading to data exposure or unauthorized actions. Organizations using affected versions of SVGO should prioritize upgrading to the patched versions to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-84370
Severity
HIGH
CVSS
8.2
EPSS
0.34%

Original NVD Description

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.4, 3.3.5, and 4.1.0, the opt-in removeScripts plugin, named removeScriptElement in versions 2 and 3, incompletely filters executable links in plugins/removeScripts.js and lib/svgo/tools.js. The plugin does not recognize namespace-prefixed SVG anchor elements such as svg:a with href or namespaced *:href values, and it does not remove ASCII tab, line-feed, or carriage-return characters before checking URL schemes. Browsers remove those characters before parsing a scheme, allowing an executable link to pass the plugin's check. When an application processes attacker-controlled SVG input and serves the result in an active browser context, a victim who activates the surviving link can execute script in the SVG's origin, expose data, modify content, or perform actions as the victim. This issue is fixed in versions 2.8.4, 3.3.5, and 4.1.0.