[dependabot]

Bumps rails-html-sanitizer from 1.6.0 to 1.7.2.

Release notes

Sourced from rails-html-sanitizer's releases.

v1.7.2 / 2026-11-02

• Deciding whether an SVG href or xlink:href is a local reference no longer takes quadratic time.

  PermitScrubber matched the attribute value against a pattern that rescanned the value's whitespace run from every line start, so an all-whitespace value took seconds to scrub. Only Ruby 3.1 and earlier are affected, because Ruby 3.2 introduced linear-time regexp matching. Through PermitScrubber, applications are only affected if the allowed tags are overridden to include an SVG reference element such as use; the default configuration is not affected.

  This change addresses GHSA-cpgf-5mjf-73p7. PermitScrubber now applies the html5lib attribute value rules by calling Loofah::HTML5::Scrub.scrub_attribute_value rather than carrying its own copy. The minimum Loofah dependency is now ~> 2.25, >= 2.25.3.

  Mike Dalessio

• rails-html-sanitizer now requires Ruby >= 3.2, because Loofah 2.25.3 requires it.

  The 1.6.x and 1.5.x release branches no longer receive security updates. Every Rails release in security support accepts rails-html-sanitizer 1.7 and requires Ruby >= 3.2.

  Mike Dalessio

• SafeListSanitizer no longer shares a PermitScrubber across calls.

  Previously one sanitizer instance reused a single PermitScrubber, assigning its tags and attributes on every call. Action View memoizes one sanitizer per helper module, so two concurrent sanitize calls with different tags: or attributes: options could interleave and one call could be scrubbed with the other call's allowlist. Each call now builds its own PermitScrubber.

  This change addresses GHSA-h7wh-q2qr-458c.

  Mike Dalessio

v1.7.1 / 2026-07-15

• SVG reference elements now restrict both href and xlink:href to local references.

  Previously PermitScrubber restricted only xlink:href on elements in SVG_ALLOW_LOCAL_HREF, so a plain href attribute on those elements could reference an external document. Applications are only affected if the allowed tags are overridden to include an SVG reference element such as use; the default configuration is not affected.

  This change addresses GHSA-cj75-f6xr-r4g7 (CVE requested). The minimum Loofah dependency is now ~> 2.25, >= 2.25.2.

  Mike Dalessio @​flavorjones

... (truncated)

Changelog

Sourced from rails-html-sanitizer's changelog.

v1.7.2 / 2026-11-02

• Deciding whether an SVG href or xlink:href is a local reference no longer takes quadratic time.

  PermitScrubber matched the attribute value against a pattern that rescanned the value's whitespace run from every line start, so an all-whitespace value took seconds to scrub. Only Ruby 3.1 and earlier are affected, because Ruby 3.2 introduced linear-time regexp matching. Through PermitScrubber, applications are only affected if the allowed tags are overridden to include an SVG reference element such as use; the default configuration is not affected.

  This change addresses GHSA-cpgf-5mjf-73p7. PermitScrubber now applies the html5lib attribute value rules by calling Loofah::HTML5::Scrub.scrub_attribute_value rather than carrying its own copy. The minimum Loofah dependency is now ~> 2.25, >= 2.25.3.

  Mike Dalessio

• rails-html-sanitizer now requires Ruby >= 3.2, because Loofah 2.25.3 requires it.

  The 1.6.x and 1.5.x release branches no longer receive security updates. Every Rails release in security support accepts rails-html-sanitizer 1.7 and requires Ruby >= 3.2.

  Mike Dalessio

• SafeListSanitizer no longer shares a PermitScrubber across calls.

  Previously one sanitizer instance reused a single PermitScrubber, assigning its tags and attributes on every call. Action View memoizes one sanitizer per helper module, so two concurrent sanitize calls with different tags: or attributes: options could interleave and one call could be scrubbed with the other call's allowlist. Each call now builds its own PermitScrubber.

  This change addresses GHSA-h7wh-q2qr-458c.

  Mike Dalessio

v1.7.1 / 2026-07-15

• SVG reference elements now restrict both href and xlink:href to local references.

  Previously PermitScrubber restricted only xlink:href on elements in SVG_ALLOW_LOCAL_HREF, so a plain href attribute on those elements could reference an external document. Applications are only affected if the allowed tags are overridden to include an SVG reference element such as use; the default configuration is not affected.

  This change addresses GHSA-cj75-f6xr-r4g7 (CVE requested). The minimum Loofah dependency is now ~> 2.25, >= 2.25.2.

  Mike Dalessio

... (truncated)

Commits

• bac36ce version bump to v1.7.2
• 235d7a4 Merge pull request #243 from rails/card-934-release-v1-7-2
• 63ff4dc doc: end support for the 1.6.x and 1.5.x branches
• 15f764c Build a PermitScrubber per SafeListSanitizer call
• c5252d7 build: require Ruby >= 3.2
• f776f96 Scrub SVG href attributes in linear time
• efa57d8 build(deps): bump crass from 1.0.7 to 1.0.8 (#240)
• 1530fb9 build(deps): bump ruby/setup-ruby (#239)
• 9206a0b build(deps): bump the github-actions group across 1 directory with 2 updates ...
• c486875 ci: run Ruby 2.7, 3.0 and 3.1 on ubuntu-24.04 (#237)
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