Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.3, Loofah's SVG_ALLOW_LOCAL_HREF safelist lists textPath with lowercase spelling that does not match the HTML5 parser's element name and omits mpath, so external href and xlink:href values on those elements survive sanitization. Firefox fetches the attacker-chosen URL when a viewer renders the content, which can disclose the viewer's IP address, user agent, referrer, and access to hosts routable only from the viewer's network. Chrome and WebKit do not fetch these references, and the impact is a network request rather than script execution. The rails-html-sanitizer PermitScrubber reuses the affected safelist when SVG elements are permitted. This issue is fixed in version 2.25.3.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-345x-3rq2-jfrm | Loofah: SVG `<textPath>` and `<mpath>` bypass local-reference restriction |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 13 Nov 2026 01:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Flavorjones
Flavorjones loofah |
|
| Vendors & Products |
Flavorjones
Flavorjones loofah |
Thu, 12 Nov 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.3, Loofah's SVG_ALLOW_LOCAL_HREF safelist lists textPath with lowercase spelling that does not match the HTML5 parser's element name and omits mpath, so external href and xlink:href values on those elements survive sanitization. Firefox fetches the attacker-chosen URL when a viewer renders the content, which can disclose the viewer's IP address, user agent, referrer, and access to hosts routable only from the viewer's network. Chrome and WebKit do not fetch these references, and the impact is a network request rather than script execution. The rails-html-sanitizer PermitScrubber reuses the affected safelist when SVG elements are permitted. This issue is fixed in version 2.25.3. | |
| Title | Loofah: SVG `<textPath>` and `<mpath>` bypass local-reference restriction | |
| Weaknesses | CWE-178 CWE-184 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-11-13T00:32:25.406Z
Reserved: 2026-11-10T20:07:44.958Z
Link: CVE-2026-126208
No data.
Status : Awaiting Analysis
Published: 2026-11-12T21:17:22.023
Modified: 2026-11-13T02:18:51.653
Link: CVE-2026-126208
No data.
OpenCVE Enrichment
Updated: 2026-11-13T01:00:09Z
Github GHSA