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CVE-2026-121446 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

svg-sanitizer from 0.5.0 before 1.1.0 contains an incomplete filtering vulnerability that allows attackers to bypass remote URL removal by using CSS escape sequences inside url() in SVG presentation attributes. Attackers can supply SVG files with attributes like fill containing escaped slashes that browsers resolve to remote URLs, triggering external requests and enabling data exfiltration.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:3.6 LOWVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-3vh3-jf65-656w	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-3vh3-jf65-656w	[email protected]	AdvisoryExploitRemedyVendor
https://www.vulncheck.com/advisories/svg-sanitizer-0.5.0-before-1.1.0-incomplete-url-filtering-in-svg-attributes	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-791	Incomplete Filtering of Special Elements	[email protected]

Affected Products

Product	Versions
enshrined/svg-sanitize	>= 0.5.0, <= 1.0.0 (semver)
CPE cpe:2.3:a:svg-sanitizer_project:svg-sanitizer:::::::: Remediation Upgrade: 1.1.0moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 7, 2026	CVE Modified	CISA-ADP
Nov 3, 2026	New CVE Received	[email protected]