GHSA-cj75-f6xr-r4g7: Rails HTML Sanitizers: Possible XSS vulnerability with certain configurations

July 21, 2026 (updated August 13, 2026)

There is a possible cross-site scripting vulnerability in rails-html-sanitizer when the sanitizer is configured to allow an SVG reference element such as <use>. See related GHSA-9wjq-cp2p-hrgf in Loofah, whose SVG local-reference logic rails-html-sanitizer mirrors.

Versions affected: >= 1.0.3, < 1.7.1
Not affected: < 1.0.3
Fixed versions: 1.7.1

References

github.com/advisories/GHSA-cj75-f6xr-r4g7
github.com/rails/rails-html-sanitizer/commit/74dcb8053e6da9921246ce71b06ad9fd65b19586
github.com/rails/rails-html-sanitizer/releases/tag/v1.7.1
github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cj75-f6xr-r4g7
nvd.nist.gov/vuln/detail/CVE-2026-73648

Code Behaviors & Features

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