{"cve":"CVE-2026-84370","nvd":{"published":"2026-09-01T21:18:48.217","modified":"2026-09-09T21:09:13.080","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","score":8.2},"cwes":["CWE-79","CWE-184"],"references":["https://github.com/svg/svgo/commit/0557385564a5c6c11d76cd934a6cff94451e532c","https://github.com/svg/svgo/commit/3db3ef33e409a0bc0fdaf255e46c908b00e93bc2","https://github.com/svg/svgo/commit/994a9f00d79ddec68ce19a1ce9eb8ca08d747e4f","https://github.com/svg/svgo/pull/2268","https://github.com/svg/svgo/pull/2269"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-84370","score":0.00525,"percentile":0.44515,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-w27v-7q3p-w38r","url":"https://osv.dev/vulnerability/GHSA-w27v-7q3p-w38r","summary":"SVGO: removeScripts allows executable links through namespace and control-character bypasses","modified":"2026-09-08T21:30:04.769354630Z","packages":[{"ecosystem":"npm","name":"svgo","purl":"pkg:npm/svgo","ranges":[">=1.0.0 <2.8.4"],"fixed":["2.8.4"]},{"ecosystem":"npm","name":"svgo","purl":"pkg:npm/svgo","ranges":[">=3.0.0 <3.3.5"],"fixed":["3.3.5"]},{"ecosystem":"npm","name":"svgo","purl":"pkg:npm/svgo","ranges":[">=4.0.0 <4.1.0"],"fixed":["4.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}